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Zheng Y, Zhang L, Xiang Q, Li J, Yao Y, Sun H, Zhao H. Human exposure characteristics of pharmaceutical and personal care product chemicals and associations with dietary habits. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 939:173540. [PMID: 38806129 DOI: 10.1016/j.scitotenv.2024.173540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 05/18/2024] [Accepted: 05/24/2024] [Indexed: 05/30/2024]
Abstract
Considering the widespread presence of pharmaceutical and personal care products (PPCPs) in the environment and their adverse health effects, human exposure to PPCPs has caused worldwide concern. However, there remains insufficient information on the exposure assessment of the Chinese population. Based on this, the exposure levels of 13 PPCPs in the urine samples of 986 Chinese adults were measured, aiming to provide information on the prevalence of PPCP occurrence and investigate potential correlations between PPCP exposure and obesity. Results showed that the detection rates of these compounds in urine ranged from 28.12 % to 98.58 %, with median concentrations ranging below the limit of detection to 10.58 ng mL-1. Methyl-paraben (MeP) was the most dominant paraben and had the highest urinary concentration (median = 10.12 ng mL-1), while 4-hydroxy-benzophenone (4-OH-BP) was the dominant benzophenone derivative (median = 0.22 ng mL-1). In antibacterials, the urinary concentration of triclosan (mean = 42.00 ng mL-1) was much higher than that of triclocarban (mean = 0.63 ng mL-1). PPCP concentrations were significantly associated with sex, age, body mass index, education level, and annual household income (p < 0.050). Regression analysis of dietary habits showed that seafood and tea consumption may be significant exposure sources of PPCP exposure (p < 0.050). Furthermore, individual exposure to MeP (odds ratio (OR) < 1, p = 0.002) and 4-OH-BP (OR < 1, p = 0.009) exhibited a significantly negative association with obesity in females. Also, analysis results from quantile g-computation and Bayesian kernel machine regression models demonstrated that an inverse correlation between PPCP mixture exposure and obesity was significant in females. This study reports the extensive prevalence of PPCP exposure among adults from China, and may provide crucial insights into PPCP exposure dynamics. More epidemiological studies are need in the future, with a thorough knowledge of PPCP exposure.
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Affiliation(s)
- Yawen Zheng
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Lei Zhang
- Research Unit of Food Safety, Chinese Academy of Medical Sciences, NHC Key Lab of Food Safety Risk Assessment, China National Center for Food Safety Risk Assessment (CFSA), Beijing 100021, China
| | - Qian Xiang
- Healthcare-associated Infection Control Center, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, Sichuan, China
| | - Jingguang Li
- Research Unit of Food Safety, Chinese Academy of Medical Sciences, NHC Key Lab of Food Safety Risk Assessment, China National Center for Food Safety Risk Assessment (CFSA), Beijing 100021, China
| | - Yiming Yao
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Hongwen Sun
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Hongzhi Zhao
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.
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Gösterişli TU, Kublay İZ, Keyf S, Bakırdere S. Development of A Liquid-Phase Microextraction Method for Simultaneous Determination of Parabens in Lipstick Samples at Trace Levels by High-Performance Liquid Chromatography. J Chromatogr Sci 2024; 62:295-300. [PMID: 37309217 DOI: 10.1093/chromsci/bmad040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 05/03/2023] [Accepted: 05/24/2023] [Indexed: 06/14/2023]
Abstract
The endocrine-disrupting potential of parabens, as well as their relation to cancer, has sparked significant discussions over their impact. Consequently, analyses of cosmetic products are an essential necessity, particularly in terms of human health and safety. In this study, a highly accurate and sensitive liquid-phase-based microextraction method was developed to determine the five parabens at trace levels by high-performance liquid chromatography. All prominent parameters of the method such as extraction solvent type and amount (1,2-dichloroethane/250 μL), and dispersive solvent type and amount (isopropyl alcohol/2.0 mL) were optimized to enhance the extraction efficiency of the analytes. The mobile phase consisting of 50 mM ammonium formate aqueous solution (pH 4.0) and acetonitrile (60:40, v/v) was used to elute the analytes at a flow rate of 1.2 mL min-1 in the isocratic mode. Analytical performance of the optimum method for methyl, ethyl, propyl, butyl and benzyl parabens were determined and the analytes recorded detection limit values of 0.78, 0.75, 0.34, 0.33 and 0.75 μg kg-1, respectively. Four different lipstick samples were analyzed under optimum conditions of the developed method, and the amount of parabens quantified in the samples using matrix matched calibration standards was in the range of 0.11-1.03%.
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Affiliation(s)
- Tuğçe U Gösterişli
- Science and Technology Application and Research Center, Yıldız Technical University, 34349 İstanbul, Türkiye
- Department of Chemical Engineering, Yıldız Technical University, 34349 İstanbul, Türkiye
| | - İrem Z Kublay
- Department of Chemistry, Yıldız Technical University, 34349 İstanbul, Türkiye
| | - Seyfullah Keyf
- Department of Chemical Engineering, Yıldız Technical University, 34349 İstanbul, Türkiye
| | - Sezgin Bakırdere
- Department of Chemistry, Yıldız Technical University, 34349 İstanbul, Türkiye
- Turkish Academy of Sciences (TÜBA), Vedat Dalokay Street, No: 112, Çankaya 06670, Ankara, Türkiye
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3
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Wang Y, Xing C, Cai B, Qiu W, Zhai J, Zeng Y, Zhang A, Shi S, Zhang Y, Yang X, Fu TM, Shen H, Wang C, Zhu L, Ye J. Impact of antioxidants on PM 2.5 oxidative potential, radical level, and cytotoxicity. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169555. [PMID: 38157913 DOI: 10.1016/j.scitotenv.2023.169555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/17/2023] [Accepted: 12/18/2023] [Indexed: 01/03/2024]
Abstract
Antioxidants are typically seen as agents that mitigate environmental health risks due to their ability to scavenge free radicals. However, our research presents a paradox where these molecules, particularly those within lung fluid, act as prooxidants in the presence of airborne particulate matter (PM2.5), thus enhancing PM2.5 oxidative potential (OP). In our study, we examined a range of antioxidants found in the respiratory system (e.g., vitamin C, glutathione (GSH), and N-acetylcysteine (NAC)), in plasma (vitamin A, vitamin E, and β-carotene), and in food (tert-butylhydroquinone (TBHQ)). We aimed to explore antioxidants' prooxidant and antioxidant interactions with PM2.5 and the resulting OP and cytotoxicity. We employed OH generation assays and electron paramagnetic resonance assays to assess the pro-oxidative and anti-oxidative effects of antioxidants. Additionally, we assessed cytotoxicity interaction using a Chinese hamster ovary cell cytotoxicity assay. Our findings revealed that, in the presence of PM2.5, all antioxidants except vitamin E significantly increased the PM2.5 OP by generating more OH radicals (OH generation rate: 0.16-24.67 pmol·min-1·m-3). However, it's noteworthy that these generated OH radicals were at least partially neutralized by the antioxidants themselves. Among the pro-oxidative antioxidants, vitamin A, β-carotene, and TBHQ showed the least ability to quench these radicals, consistent with their observed impact in enhancing PM2.5 cytotoxicity (PM2.5 LC50 reduced to 91.2 %, 88.8 %, and 75.1 % of PM2.5's original level, respectively). Notably, vitamin A and TBHQ-enhanced PM2.5 OP were strongly associated with the presence of metals and organic compounds, particularly with copper (Cu) contributing significantly (35 %) to TBHQ's pro-oxidative effect. Our study underscores the potential health risks associated with the interaction between antioxidants and ambient pollutants.
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Affiliation(s)
- Yixiang Wang
- Shenzhen Key Laboratory of Precision Measurement and Early Warning Technology for Urban Environmental Health Risks, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China; Guangdong Provincial Observation and Research Station for Coastal Atmosphere and Climate of the Greater Bay Area, Shenzhen 518055, China
| | - Chunbo Xing
- Shenzhen Key Laboratory of Precision Measurement and Early Warning Technology for Urban Environmental Health Risks, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China; Guangdong Provincial Observation and Research Station for Coastal Atmosphere and Climate of the Greater Bay Area, Shenzhen 518055, China
| | - Baohua Cai
- Shenzhen Key Laboratory of Precision Measurement and Early Warning Technology for Urban Environmental Health Risks, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China; Guangdong Provincial Observation and Research Station for Coastal Atmosphere and Climate of the Greater Bay Area, Shenzhen 518055, China
| | - Wenhui Qiu
- Shenzhen Key Laboratory of Precision Measurement and Early Warning Technology for Urban Environmental Health Risks, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jinghao Zhai
- Shenzhen Key Laboratory of Precision Measurement and Early Warning Technology for Urban Environmental Health Risks, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China; Guangdong Provincial Observation and Research Station for Coastal Atmosphere and Climate of the Greater Bay Area, Shenzhen 518055, China
| | - Yaling Zeng
- Shenzhen Key Laboratory of Precision Measurement and Early Warning Technology for Urban Environmental Health Risks, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China; Guangdong Provincial Observation and Research Station for Coastal Atmosphere and Climate of the Greater Bay Area, Shenzhen 518055, China
| | - Antai Zhang
- Shenzhen Key Laboratory of Precision Measurement and Early Warning Technology for Urban Environmental Health Risks, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China; Guangdong Provincial Observation and Research Station for Coastal Atmosphere and Climate of the Greater Bay Area, Shenzhen 518055, China
| | - Shao Shi
- Shenzhen Key Laboratory of Precision Measurement and Early Warning Technology for Urban Environmental Health Risks, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China; Guangdong Provincial Observation and Research Station for Coastal Atmosphere and Climate of the Greater Bay Area, Shenzhen 518055, China
| | - Yujie Zhang
- Shenzhen Key Laboratory of Precision Measurement and Early Warning Technology for Urban Environmental Health Risks, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China; Guangdong Provincial Observation and Research Station for Coastal Atmosphere and Climate of the Greater Bay Area, Shenzhen 518055, China
| | - Xin Yang
- Shenzhen Key Laboratory of Precision Measurement and Early Warning Technology for Urban Environmental Health Risks, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China; Guangdong Provincial Observation and Research Station for Coastal Atmosphere and Climate of the Greater Bay Area, Shenzhen 518055, China.
| | - Tzung-May Fu
- Shenzhen Key Laboratory of Precision Measurement and Early Warning Technology for Urban Environmental Health Risks, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China; Guangdong Provincial Observation and Research Station for Coastal Atmosphere and Climate of the Greater Bay Area, Shenzhen 518055, China
| | - Huizhong Shen
- Shenzhen Key Laboratory of Precision Measurement and Early Warning Technology for Urban Environmental Health Risks, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China; Guangdong Provincial Observation and Research Station for Coastal Atmosphere and Climate of the Greater Bay Area, Shenzhen 518055, China
| | - Chen Wang
- Shenzhen Key Laboratory of Precision Measurement and Early Warning Technology for Urban Environmental Health Risks, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China; Guangdong Provincial Observation and Research Station for Coastal Atmosphere and Climate of the Greater Bay Area, Shenzhen 518055, China
| | - Lei Zhu
- Shenzhen Key Laboratory of Precision Measurement and Early Warning Technology for Urban Environmental Health Risks, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China; Guangdong Provincial Observation and Research Station for Coastal Atmosphere and Climate of the Greater Bay Area, Shenzhen 518055, China
| | - Jianhuai Ye
- Shenzhen Key Laboratory of Precision Measurement and Early Warning Technology for Urban Environmental Health Risks, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China; Guangdong Provincial Observation and Research Station for Coastal Atmosphere and Climate of the Greater Bay Area, Shenzhen 518055, China
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4
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Shi P, Yue X, Teng X, Qu R, Rady A, Maodaa S, Allam AA, Wang Z, Huo Z. Degradation of Butylated Hydroxyanisole by the Combined Use of Peroxymonosulfate and Ferrate(VI): Reaction Kinetics, Mechanism and Toxicity Evaluation. TOXICS 2024; 12:54. [PMID: 38251010 PMCID: PMC10818440 DOI: 10.3390/toxics12010054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/07/2024] [Accepted: 01/09/2024] [Indexed: 01/23/2024]
Abstract
Butylated hydroxyanisole (BHA), a synthetic phenolic antioxidant (SPA), is now widely present in natural waters. To improve the degradation efficiency of BHA and reduce product toxicity, a combination of peroxymonosulfate (PMS) and Ferrate(VI) (Fe(VI)) was used in this study. We systematically investigated the reaction kinetics, mechanism and product toxicity in the degradation of BHA through the combined use of PMS and Fe(VI). The results showed that PMS and Fe(VI) have synergistic effects on the degradation of BHA. The effects of operational factors, including PMS dosage, pH and coexisting ions (Cl-, SO42-, HCO3-, K+, NH4+ and Mg2+), and different water matrices were investigated through a series of kinetic experiments. When T = 25 °C, the initial pH was 8.0, the initial BHA concentration was 100 μM, the initial concentration ratio of [PMS]0:[Fe(VI)]0:[BHA]0 was 100:1:1 and the degradation rate could reach 92.4% within 30 min. Through liquid chromatography time-of-flight mass spectrometry (LC-TOF-MS) identification, it was determined that the oxidation pathway of BHA caused by PMS/Fe(VI) mainly includes hydroxylation, ring-opening and coupling reactions. Density functional theory (DFT) calculations indicated that •OH was most likely to attack BHA and generate hydroxylated products. The comprehensive comparison of product toxicity results showed that the PMS/Fe(VI) system can effectively reduce the environmental risk of a reaction. This study contributes to the development of PMS/Fe(VI) for water treatment applications.
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Affiliation(s)
- Peiduan Shi
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210023, China; (P.S.); (X.Y.); (R.Q.); (Z.W.)
| | - Xin Yue
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210023, China; (P.S.); (X.Y.); (R.Q.); (Z.W.)
| | - Xiaolei Teng
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210023, China; (P.S.); (X.Y.); (R.Q.); (Z.W.)
| | - Ruijuan Qu
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210023, China; (P.S.); (X.Y.); (R.Q.); (Z.W.)
| | - Ahmed Rady
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (A.R.); (S.M.)
| | - Saleh Maodaa
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (A.R.); (S.M.)
| | - Ahmed A. Allam
- Department of Zoology, Faculty of Science, Beni-Suef University, Beni-Suef 65211, Egypt;
| | - Zunyao Wang
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210023, China; (P.S.); (X.Y.); (R.Q.); (Z.W.)
| | - Zongli Huo
- Jiangsu Provincial Center for Disease Control and Prevention, No. 172 Jiangsu Road, Nanjing 210009, China
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5
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Mahmood TH, Al-Samydai A, Sulaibi MA, Alqaraleh M, Abed AI, Shalan N, Alsanabrah A, Alsotari ST, Nsairat H, Alshaer W. Development of Pegylated Nano-Phytosome Formulation with Oleuropein and Rutin to Compare Anti-Colonic Cancer Activity with Olea Europaea Leaves Extract. Chem Biodivers 2023; 20:e202300534. [PMID: 37498138 DOI: 10.1002/cbdv.202300534] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 07/24/2023] [Accepted: 07/26/2023] [Indexed: 07/28/2023]
Abstract
Olive leaf extract is a valuable source of phenolic compounds; primarily, oleuropein (major component) and rutin. This natural olive leaf extract has potential use as a therapeutic agent for cancer treatment. However, its clinical application is hindered by poor pharmacokinetics and low stability. To overcome these limitations, this study aimed to enhance the anticancer activity and stability of oleuropein and rutin by loading them into PEGylated Nano-phytosomes. The developed PEGylated Nano-phytosomes exhibited favorable characteristics in terms of size, charge, and stability. Notably, the anticolonic cancer activity of the Pegylated Nano-phytosomes loaded with oleuropein (IC50=0.14 μM) and rutin (IC50=0.44 μM) surpassed that of pure oleuropein and rutin alone. This outcome highlights the advantageous impact of Nano-phytosomes to augment the anticancer potential of oleuropein and rutin. These results present a promising pathway for the future development of oleuropein and rutin Nano-phytosomes as effective options for passive tumor-targeted therapy, given their improved stability and efficacy.
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Affiliation(s)
- Tabarek H Mahmood
- Faculty of Pharmacy, Pharmacological and Diagnostic Research Center, Al-Ahliyya Amman University, Amman, Jordan
| | - Ali Al-Samydai
- Faculty of Pharmacy, Pharmacological and Diagnostic Research Center, Al-Ahliyya Amman University, Amman, Jordan
| | - Mazen Al Sulaibi
- Faculty of Pharmacy, Pharmacological and Diagnostic Research Center, Al-Ahliyya Amman University, Amman, Jordan
| | - Moath Alqaraleh
- Faculty of Pharmacy, Pharmacological and Diagnostic Research Center, Al-Ahliyya Amman University, Amman, Jordan
| | - Anas Ibrahim Abed
- Faculty of Pharmacy, Pharmacological and Diagnostic Research Center, Al-Ahliyya Amman University, Amman, Jordan
| | - Naeem Shalan
- Faculty of Pharmacy, Pharmacological and Diagnostic Research Center, Al-Ahliyya Amman University, Amman, Jordan
| | - Alaa Alsanabrah
- Faculty of Pharmacy, Pharmacological and Diagnostic Research Center, Al-Ahliyya Amman University, Amman, Jordan
| | | | - Hamdi Nsairat
- Faculty of Pharmacy, Pharmacological and Diagnostic Research Center, Al-Ahliyya Amman University, Amman, Jordan
| | - Walhan Alshaer
- Cell Therapy Center, The University of Jordan, Amman, 11942, Jordan
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6
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Vortex-assisted solid phase extraction on MIL-101(Cr) of parabens in waters and cosmetics by HPLC–DAD. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2023. [DOI: 10.1007/s13738-023-02763-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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7
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DES-based vortex-assisted liquid-liquid microextraction procedure developed for the determination of paraben preservatives in mouthwashes. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107445] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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8
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Güray T, Akıl FH, Uysal UD. Ultrasound-assisted cloud point microextraction of certain preservatives in real samples and determination by HPLC. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:1031-1040. [PMID: 35188151 DOI: 10.1039/d1ay01887f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Ultrasound-assisted cloud point microextraction (UA-CPME) was performed for certain preservatives (p-hydroxy benzoic acid and its alkyl esters, methyl, ethyl, propyl and butyl parabens). Then, an HPLC method was developed for their simultaneous determination in pharmaceutical and cosmetic samples. The chromatograms of these substances were recorded on a C18 column using a gradient elution technique with various solvent systems at different flow rates and at 254 nm wavelength using a diode-array detector (DAD). The analysis conditions found by the classical method were optimized using the Box-Behnken design (BBD). In the design, the effect of each factor was examined with 3 and 4 factors for UA-CPME and HPLC analyses, respectively. The brij 58 concentration (BC), Na2SO4 amount (SA) and extraction time (ET) for UA-CPME, and the mobile phase 1 (MP1) ratio, mobile phase 2 (MP2) ratio, flow rate (FR) and column temperature parameters for HPLC analysis were obtained for the investigated levels. The factors affecting the resolution were determined by applying regression analysis to the experimental results. The analysis of variance (ANOVA) test was applied to ensure result reliability. The ANOVA test was used to determine the reliability of the results. A model was created with the obtained data. The developed method was validated by examining linearity, reproducibility, accuracy, limit of quantification and limit of the detection. Methyl paraben (with 0.148% RSD value and 0.060% relative error), and propyl paraben (with 0.149% RSD value and 0.120% relative error) were determined in the syrup sample by the developed method. Methyl paraben with recovery values of (98.32-99.42)% and ethyl paraben with recovery values of (99.17-99.41)%, were determined in a hand cream.
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Affiliation(s)
- Tufan Güray
- Eskisehir Osmangazi University, Faculty of Letters and Sciences, Department of Chemistry, F-5 block, 26480 Eskisehir, Turkey.
| | - Filiz Hümeyra Akıl
- Eskisehir Osmangazi University, Graduate School of Natural and Applied Sciences, Department of Chemistry, Eskisehir, Turkey
| | - Ulku Dilek Uysal
- Department of Chemistry, Faculty of Science, Eskisehir Technical University, 26470, Eskişehir, Turkey
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A MWCNTs-COOH/PSS nanocomposite-modified screen-printed electrode for the determination of synthetic phenolic antioxidants by HPLC with amperometric detection. Mikrochim Acta 2022; 189:469. [PMID: 36422711 PMCID: PMC9691489 DOI: 10.1007/s00604-022-05552-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 10/28/2022] [Indexed: 11/27/2022]
Abstract
New sensing platforms based on screen-printed carbon electrodes modified with composites based on polystyrene sulfonate and oxidized multi-walled carbon nanotubes (PSS/MWCNTs-COOH/SPCE) have been used to develop a novel HPLC method with electrochemical detection (ECD) for the determination of the most used synthetic phenolic antioxidants in cosmetics: butylhydroxytoluene (BHT), butylhydroxyanisole (BHA), tert-butylhydroquinone (TBHQ) and propyl gallate (PG). Optimal separation conditions were achieved using methanol: 0.10 mol L-1 acetate solution at pH 6 as mobile phase with a gradient elution program from 60 to 90% of methanol percentage in 15 min. The electrochemical detection was carried out in amperometric mode using the PSS/MWCNTs-COOH/SPCE at + 0.80 V vs. Ag. Under these optimal separation and detection conditions, the limits of detection (LOD) were between 0.11 and 0.25 mg L-1. These LOD values were better, especially for BHT, than those previously published in other HPLC methods. Linear ranges from 0.37 mg L-1, 0.83 mg L-1, 0.69 mg L-1 and 0.56 mg L-1 to 10 mg L-1 were obtained for PG, TBHQ, BHA and BHT, respectively. RSD values equal or lower than 5% and 8% were achieved for repeatability and reproducibility, respectively. The HPLC-ECD method was successfully applied to analyze different cosmetic samples. Recovery values within 83-109% were obtained in the validation studies.
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Zhao X, Liu X, Wang J, Liu Y, Zhang T, Chen J, Li Q, Wei Y, Xi X. Determination of polymer additives in foods and drinks packed with plastic by amino group modified magnetic mesoporous silica microspheres coupled with high performance liquid chromatography. J LIQ CHROMATOGR R T 2021. [DOI: 10.1080/10826076.2021.1895219] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Xiaoyan Zhao
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P.R. China
| | - Xuerui Liu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P.R. China
| | - Juanqiang Wang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P.R. China
| | - Yuanyuan Liu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P.R. China
| | - Taoyi Zhang
- Sinopec Beijing Research Institute of Chemical Industry, Beijing 100013, P.R. China
| | - Jing Chen
- Sinopec Beijing Research Institute of Chemical Industry, Beijing 100013, P.R. China
| | - Quan Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P.R. China
| | - Yun Wei
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P.R. China
| | - Xingjun Xi
- China National Institute of Standardization, Beijing 100191, P.R. China
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11
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Uwineza PA, Waśkiewicz A. Recent Advances in Supercritical Fluid Extraction of Natural Bioactive Compounds from Natural Plant Materials. Molecules 2020; 25:molecules25173847. [PMID: 32847101 PMCID: PMC7504334 DOI: 10.3390/molecules25173847] [Citation(s) in RCA: 123] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 08/18/2020] [Accepted: 08/20/2020] [Indexed: 11/16/2022] Open
Abstract
In this review, recent advances in greener technology for extracting natural bioactive components from plant origin sources are discussed. Bioactive compounds of plant origin have been defined as natural chemical compounds present in small amounts in plants. Researchers have shown interest in extracting bioactive compounds because of their human health benefits and characteristics of being eco-friendly and generally recognized as safe. Various new extraction methods and conventional extraction methods have been developed, however, until now, no unique approach has been presented as a benchmark for extracting natural bioactive compounds from plants. The selectivity and productivity of traditional and modern extraction techniques generally depend on selecting the critical input parameters, knowing the nature of plant-based samples, the structure of bioactive compounds, and good scientific skills. This work aims to discuss the recent advances in supercritical fluid extraction techniques, especially supercritical carbon dioxide, along with the fundamental principles for extracting bioactive compounds from natural plant materials such as herbs, spices, aromatic and medicinal plants.
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12
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Özcan S, Levent S, Can NÖ, Kozanli M. A Novel HPLC Method for Simultaneous Determination of Methyl, Ethyl, n-propyl, Isopropyl, n-butyl, Isobutyl and Benzyl Paraben in Pharmaceuticals and Cosmetics. Comb Chem High Throughput Screen 2020; 24:352-365. [PMID: 32723231 DOI: 10.2174/1386207323999200728121657] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 04/20/2020] [Accepted: 06/04/2020] [Indexed: 11/22/2022]
Abstract
INTRODUCTION The alkyl esters of p-hydroxybenzoic acid at the C-4 position, "the parabens," including methyl, ethyl, propyl, and butyl, are widely used as antimicrobial preservatives in foods, cosmetics, and pharmaceuticals. Official regulations on the use of these compounds make their analysis essential for the estimation of their exposure. METHODS On this basis, the presented study was realized to develop a simple, selective and cheap high-performance liquid chromatographic method for the quantitative determination of methylparaben, ethylparaben (EP), n-propyl paraben (NPP), isopropyl paraben (IPP), n-butyl paraben (NBP), isobutyl paraben (IBP) and benzyl paraben (BP) in pharmaceuticals and cosmetic products. RESULTS The chromatographic separation of the analytes was achieved under flow rate gradient elution conditions using a C18-bonded core-shell silica particle column (2.6 μm particle size, 150 × 3.0 mm from Phenomenex Co.). The samples were injected into the system as aliquots of 1.0 μL, and the compounds were detected by using a photodiode array detector set at 254 nm wavelength. With this technique, seven paraben derivatives can be determined in the concentration range of 250-2000 ng/mL. The recovery of the method is in the range of 99.95-13.84%, and the RSD is at a maximum value of 3.95%. CONCLUSION The proposed method was fully validated and successfully applied to different pharmaceutical and cosmetic samples (n=16), including syrups, suspensions, oral sprays, gels, etc. At least one paraben derivative was detected in six samples and was determined quantitatively. The maximum amount of a paraben derivative found in the analyzed samples was 321.7 ng/mL, which was MP. To the best of our knowledge, this is the first LC method, which is applicable both on pharmaceutical and cosmetic samples.
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Affiliation(s)
- Saniye Özcan
- Department of Analytical Chemistry, Faculty of Pharmacy, Anadolu University, 26470, Eskisehir, Turkey
| | - Serkan Levent
- Doping and Narcotic Compounds Analysis Laboratory, Faculty of Pharmacy, Anadolu University, 26470, Eskisehir, Turkey
| | - Nafiz Öncü Can
- Department of Analytical Chemistry, Faculty of Pharmacy, Anadolu University, 26470, Eskisehir, Turkey
| | - Murat Kozanli
- Department of Analytical Chemistry, Faculty of Pharmacy, Anadolu University, 26470, Eskisehir, Turkey
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13
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Ultrafast and complete drying of ecamsule solution using supercritical carbon dioxide with fluctuating pressure technique. J Supercrit Fluids 2020. [DOI: 10.1016/j.supflu.2020.104795] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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14
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El Sherbiny D, Wahba MEK. Development and validation of liquid chromatographic methods for the estimation of the acceptance values of some hazardous preservatives in pharmaceutical formulations. A comparative study. JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2020. [DOI: 10.1080/16583655.2020.1736768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Dina El Sherbiny
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
- Department of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Mary E. K. Wahba
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
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15
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Ghosh C, Singh V, Grandy J, Pawliszyn J. Development and validation of a headspace needle-trap method for rapid quantitative estimation of butylated hydroxytoluene from cosmetics by hand-portable GC-MS. RSC Adv 2020. [DOI: 10.1039/c9ra08676e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Butylated hydroxytoluene (BHT) is widely used as a stable and inexpensive antioxidant in skin care products.
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Affiliation(s)
| | - Varoon Singh
- Department of Chemistry
- University of Waterloo
- Canada
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16
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Othman A, Norton L, Finny AS, Andreescu S. Easy-to-use and inexpensive sensors for assessing the quality and traceability of cosmetic antioxidants. Talanta 2019; 208:120473. [PMID: 31816775 DOI: 10.1016/j.talanta.2019.120473] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 10/09/2019] [Accepted: 10/12/2019] [Indexed: 12/20/2022]
Abstract
We describe an easy-to-use sensor as a tool to quantify and authenticate antioxidant active ingredients in cosmetic products. The sensing platform comprises a responsive nanoengineered surface that reacts specifically and generates distinct optically detectable signals that are representative of the chemical composition and concentration of active ingredients. The platform can be inexpensively produced in large quantities and a procedure to manufacture the sensors by 3D printing is described. These sensors can be used as smart labels to check the quality of antioxidant constituents in a large variety of cosmetic products without involving any sample pretreatment. Possible applications include at home and on site testing by consumers or manufacturing companies to check the quality, shelf life and origin of raw materials and products during their manufacturing, storage and use.
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Affiliation(s)
- Ali Othman
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, NY, 13699-5810, United States
| | - Lily Norton
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, NY, 13699-5810, United States
| | - Abraham Samuel Finny
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, NY, 13699-5810, United States
| | - Silvana Andreescu
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, NY, 13699-5810, United States.
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Thakur A, Juglan K, Kumar H, Kaur K. Investigation on molecular interaction of glycols in methanol solutions of methylparaben (methyl 4 – hydroxybenzoate) at different temperatures through thermo-acoustical analysis. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111014] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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18
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Ariffin MM, Azmi AHM, Saleh NM, Mohamad S, Rozi SKM. Surfactant functionalisation of magnetic nanoparticles: A greener method for parabens determination in water samples by using magnetic solid phase extraction. Microchem J 2019. [DOI: 10.1016/j.microc.2019.04.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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19
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Golubev VA, Gurina DL. The self-diffusion of parabens (methyl-, propylparaben) and tetramethylsilane in the binary solvent carbon tetrachloride – Co-solvent (methanol‑d4, acetone‑d6) at 278, 298 and 318 K. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.03.038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Gurina DL, Antipova ML, Odintsova EG, Petrenko VE. Hydrogen-Bonded Complexes of p-Hydrobenzoic Acid and Its Derivatives with a Polar Cosolvent in Supercritical Carbon Dioxide. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2019. [DOI: 10.1134/s0036024419050121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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21
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A carbon paste electrode modified with a nickel titanate nanoceramic for simultaneous voltammetric determination of ortho- and para-hydroxybenzoic acids. Mikrochim Acta 2018; 186:12. [PMID: 30535660 DOI: 10.1007/s00604-018-3113-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 11/25/2018] [Indexed: 10/27/2022]
Abstract
An electrochemical sensor is described for the simultaneous determination of ortho-hydroxybenzoic acid (OHB) and para-hydroxybenzoic acid (PHB). The sensor consists of a carbon paste electrode modified with nickel titanate nanoceramics (NiTiO3/CPE). The NiTiO3 nanoceramics and the nanostructured modified CPE were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, electrochemical impedance spectroscopy and cyclic voltammetry. Differential pulse voltammetry indicates that the response to OHB (best measured at 0.90 V vs. Ag/AgCl) and PHB (measured at 0.80 V vs. Ag/AgCl) is significantly improved at the modified CPE compared to a bare CPE. The limits of detection (at S/N = 3) are 0.38 and 0.10 μM for OHB and PHB, respectively. The method was applied to the determination of the two isomers in peeling skin lotion and during the Kolbe-Schmitt reaction. Graphical abstract Nickel titanate nanoceramics (NiTiO3) were synthesized by a sol-gel method. Then, a carbon paste electrode modified with NiTiO3 (NiTiO3/CPE) was constructed. The modified electrode was applied to the interference-free and simultaneous determination of ortho-hydroxybenzoic acid (OHB) and para-hydroxybenzoic acid (PHB).
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Mashile GP, Mpupa A, Nomngongo PN. In-Syringe Micro Solid-Phase Extraction Method for the Separation and Preconcentration of Parabens in Environmental Water Samples. Molecules 2018; 23:molecules23061450. [PMID: 29904011 PMCID: PMC6100510 DOI: 10.3390/molecules23061450] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 06/12/2018] [Accepted: 06/13/2018] [Indexed: 12/11/2022] Open
Abstract
In this study, a simple, rapid and effective in-syringe micro-solid phase extraction (MSPE) method was developed for the separation and preconcetration of parabens (methyl, ethyl, propyl and butyl paraben) in environmental water samples. The parabens were determined and quantified using high performance liquid chromatography and a photo diode array detector (HPLC-PDA). Chitosan-coated activated carbon (CAC) was used as the sorbent in the in-syringe MSPE device. A response surface methodology based on central composite design was used for the optimization of factors (eluent solvent type, eluent volume, number of elution cycles, sample volume, sample pH) affecting the extraction efficiency of the preconcentration procedure. The adsorbent used displayed excellent absorption performance and the adsorption capacity ranged from 227–256 mg g−1. Under the optimal conditions the dynamic linear ranges for the parabens were between 0.04 and 380 µg L−1. The limits of detection and quantification ranged from 6–15 ng L−1 and 20–50 ng L−1, respectively. The intraday (repeatability) and interday (reproducibility) precisions expressed as relative standard deviations (%RSD) were below 5%. Furthermore, the in-syringe MSPE/HPLC procedure was validated using spiked wastewater and tap water samples and the recoveries ranged between from 96.7 to 107%. In conclusion, CAC based in-syringe MSPE method demonstrated great potential for preconcentration of parabens in complex environmental water.
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Affiliation(s)
- Geaneth Pertunia Mashile
- Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg 2028, South Africa.
| | - Anele Mpupa
- Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg 2028, South Africa.
| | - Philiswa Nosizo Nomngongo
- Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg 2028, South Africa.
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Müller D, Nogueira M, Cattaneo S, Meier F, Drexel R, Contado C, Pagnoni A, de Vries T, Cohen D, Portugal-Cohen M, deMello A. Integration of Inverse Supercritical Fluid Extraction and Miniaturized Asymmetrical Flow Field-Flow Fractionation for the Rapid Analysis of Nanoparticles in Sunscreens. Anal Chem 2018; 90:3189-3195. [DOI: 10.1021/acs.analchem.7b04535] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- David Müller
- Centre Suisse d’Electronique et de Microtechnique (CSEM), Bahnhofstrasse 1, 7302 Landquart, Switzerland
- Institute for Chemical and Bioengineering, Department for Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, 8093 Zürich, Switzerland
| | - Margarida Nogueira
- Centre Suisse d’Electronique et de Microtechnique (CSEM), Bahnhofstrasse 1, 7302 Landquart, Switzerland
| | - Stefano Cattaneo
- Centre Suisse d’Electronique et de Microtechnique (CSEM), Bahnhofstrasse 1, 7302 Landquart, Switzerland
| | - Florian Meier
- Postnova Analytics GmbH, Max-Planck-Strasse 14, 86899 Landsberg am Lech, Germany
| | - Roland Drexel
- Postnova Analytics GmbH, Max-Planck-Strasse 14, 86899 Landsberg am Lech, Germany
| | - Catia Contado
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy
| | - Antonella Pagnoni
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy
| | - Tjerk de Vries
- Feyecon Carbon Dioxide Technologies, Rijnkade 17a, 1382 GS Weesp, The Netherlands
| | - Dror Cohen
- AHAVA Dead Sea Laboratories, 1 Arava Street, 70150 Lod, Israel
| | | | - Andrew deMello
- Institute for Chemical and Bioengineering, Department for Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, 8093 Zürich, Switzerland
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Oliveira Monteiro T, Costa dos Santos C, Santos Damos F, de Cássia Silva Luz R. Light-emitting Diode-assisted Determination of 2-(1,1-Dimethylethyl)-1,4-Benzenediol in Cosmetic Samples Exploiting TiO2
Sensitized with Lithium 7,7′,8,8′-Tetracyanoquinodimethanide. ELECTROANAL 2018. [DOI: 10.1002/elan.201700745] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Thatyara Oliveira Monteiro
- Laboratory of Sensors, Devices and Analytical Methods, Department of Chemistry; Federal University of Maranhão; 65080-805 São Luís - MA Brazil
| | | | - Flávio Santos Damos
- Laboratory of Sensors, Devices and Analytical Methods, Department of Chemistry; Federal University of Maranhão; 65080-805 São Luís - MA Brazil
| | - Rita de Cássia Silva Luz
- Laboratory of Sensors, Devices and Analytical Methods, Department of Chemistry; Federal University of Maranhão; 65080-805 São Luís - MA Brazil
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26
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A stir foam composed of graphene oxide, poly(ethylene glycol) and natural latex for the extraction of preservatives and antioxidant. Mikrochim Acta 2018; 185:148. [DOI: 10.1007/s00604-017-2643-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 12/28/2017] [Indexed: 11/24/2022]
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Gunnam A, Suresh K, Ganduri R, Nangia A. Crystal engineering of a zwitterionic drug to neutral cocrystals: a general solution for floxacins. Chem Commun (Camb) 2018; 52:12610-12613. [PMID: 27711455 DOI: 10.1039/c6cc06627e] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The transformation of zwitterionic Sparfloxacin (SPX) to the neutral form is achieved by cocrystallization. Neutral forms of drugs are important for higher membrane permeability, while zwitterions are more soluble in water. The twin advantages of higher solubility/dissolution rate and good stability of neutral SPX are achieved in a molecular cocrystal compared to its zwitterionic SPX hydrate. The amine-phenol supramolecular synthon drives cocrystal formation, with the paraben ester acting as a "proton migrator" for the ionic to neutral transformation.
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Affiliation(s)
- Anilkumar Gunnam
- School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli Central University P.O., Hyderabad 500046, India.
| | - Kuthuru Suresh
- School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli Central University P.O., Hyderabad 500046, India.
| | - Ramesh Ganduri
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Bengaluru 560012, India
| | - Ashwini Nangia
- School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli Central University P.O., Hyderabad 500046, India. and CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India.
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Park J, Choi S, Oh D, Mah JH. Simultaneous and rapid analysis of chemical preservatives in processed animal products by ultra-performance liquid chromatography. Food Sci Biotechnol 2017; 27:291-298. [PMID: 30263752 DOI: 10.1007/s10068-017-0238-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 09/13/2017] [Accepted: 09/20/2017] [Indexed: 10/18/2022] Open
Abstract
An ultra-performance liquid chromatography-tunable ultraviolet method was optimized and validated for the simultaneous analysis of nine chemical preservatives in processed animal products. The limits of detection and quantification for the preservatives were within the ranges of 0.02-0.23 and 0.07-0.76 μg/mL, respectively. The relative standard deviations for intraday analyses of retention time and peak area were 0.00-0.23 and 0.03-2.93%, respectively, whereas, those for interday analyses were 0.67-2.30 and 2.12-5.37%, respectively. Of the nine preservatives spiked into six different animal products, dehydroacetic acid spiked into soft cheese exhibited the lowest recovery rate of 72.1 ± 0.36% at the lowest concentration (0.25 g/kg). Comparing data between UPLC and high-performance liquid chromatography with a 5% significance level, the t-statistic was 1.42. Moreover, sorbic acid was detected in 16 animal products (0.11-2.49 g/kg) when 278 products were analyzed for preservatives.
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Affiliation(s)
- Jwahaeng Park
- 1Ministry of Food and Drug Safety, Cheongju, Chungcheongbuk-do 28159 Republic of Korea.,2Department of Biotechnology, Korea University, Seoul, 02841 Republic of Korea
| | - Sunju Choi
- 1Ministry of Food and Drug Safety, Cheongju, Chungcheongbuk-do 28159 Republic of Korea
| | - Donghwan Oh
- 1Ministry of Food and Drug Safety, Cheongju, Chungcheongbuk-do 28159 Republic of Korea
| | - Jae-Hyung Mah
- 3Department of Food and Biotechnology, Korea University, Sejong, 30019 Republic of Korea
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Yin Q, Zhu Y, Yang Y. Dispersive Liquid–Liquid Microextraction Followed by Magnetic Solid-Phase Extraction for Determination of Four Parabens in Beverage Samples by Ultra-performance Liquid Chromatography Tandem Mass Spectrometry. FOOD ANAL METHOD 2017. [DOI: 10.1007/s12161-017-1051-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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30
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Solvation of para-hydroxybenzoic acid and its esters (methylparaben, propylparaben) in supercritical carbon dioxide. Computer simulation. J Supercrit Fluids 2017. [DOI: 10.1016/j.supflu.2016.10.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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31
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Cho YT, Su H, Lin SJ, Wu BH, Lai CY, Huang IC. Using thermal desorption electrospray ionization mass spectrometry to rapidly determine antimicrobial preservatives in cosmetics. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2016; 30:2315-2322. [PMID: 27488136 DOI: 10.1002/rcm.7706] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2016] [Revised: 07/23/2016] [Accepted: 07/30/2016] [Indexed: 06/06/2023]
Abstract
RATIONALE Characterization and quantification of permitted preservatives are important inspections to prevent the overuse of preservatives in authentic formulations. However, the complexity of sample matrices makes preservative determination in cosmetics a tedious process. A rapid analytical strategy to identify preservatives would insure large numbers of products are in compliance with government regulations. METHODS Thermal desorption electrospray ionization mass spectrometry (TD-ESI-MS) was used to directly detect preservative compounds in authentic formulations without sample pretreatment. The technique employs a metal probe, which was configured for sampling cosmetics in their original states and was inserted in a closed preheated oven to thermally desorb analytes. The desorbed analytes were then carried by a nitrogen gas stream into an ESI plume, where the formed ions were subsequently detected by the mass analyzer. RESULTS The TD-ESI mass and tandem mass spectra of different classes of preservative standards were rapidly obtained, and the limits of detection were far below the legal limit of their respective concentrations. The preservatives were also directly detected in different types of authentic formulations in the absence of sample preparation, and within a few seconds per sample. Calibration curves for preservatives in four common formulations yielded good linearity in the regulation-allowed range. CONCLUSIONS Due to its sensitivity, short analysis time, repeatability, and quantitative ability, TD-ESI-MS may serve as a suitable tool for large-scale screening of cosmetic preservatives to assure product safety. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Yi-Tzu Cho
- Department of Cosmetic Applications and Management, Yuh-Ing Junior College of Health Care & Management, Kaohsiung, Taiwan.
| | - Hung Su
- Department of Chemistry, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Shiang-Jiun Lin
- Department of Chemistry, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Ban-Hsin Wu
- Department of Chemistry, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Ching-Yu Lai
- Department of Cosmetic Applications and Management, Yuh-Ing Junior College of Health Care & Management, Kaohsiung, Taiwan
| | - I-Ching Huang
- Department of Cosmetic Applications and Management, Yuh-Ing Junior College of Health Care & Management, Kaohsiung, Taiwan
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Feng J, He X, Liu X, Sun X, Li Y. Preparation of magnetic graphene/mesoporous silica composites with phenyl-functionalized pore-walls as the restricted access matrix solid phase extraction adsorbent for the rapid extraction of parabens from water-based skin toners. J Chromatogr A 2016; 1465:20-9. [DOI: 10.1016/j.chroma.2016.08.052] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 08/22/2016] [Accepted: 08/23/2016] [Indexed: 10/21/2022]
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Hossain MS, Islam MS, Bhadra S, Rouf ASS. Screening of caffeine, preservatives and antioxidants in dairy products available in Bangladesh using an RP-HPLC method. INTERNATIONAL JOURNAL OF FOOD CONTAMINATION 2016. [DOI: 10.1186/s40550-016-0030-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Quantitative analysis of methyl and propyl parabens in neonatal DBS using LC–MS/MS. Bioanalysis 2016; 8:1173-82. [DOI: 10.4155/bio-2016-0029] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Aim: Excipients are used to overcome the chemical, physical and microbiological challenges posed by developing formulated medicines. Both methyl and propyl paraben are commonly used in pediatric liquid formulations. There is no data on systemic exposure to parabens in neonates. The European Study of Neonatal Exposure to Excipients project has investigated this. Results & methodology: DBS sampling was used to collect opportunistic blood samples. Parabens were extracted from the DBS and analyzed using a validated LC–MS/MS assay. Discussion & conclusion: The above assay was applied to analyze neonatal DBS samples. The blood concentrations of parabens in neonates confirm systemic exposure to parabens following administration of routine medicines.
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Lecce R, Regazzoni L, Mustazza C, Incarnato G, Porrà R, Panusa A. Screening of preservatives by HPLC-PDA-ESI/MS: A focus on both allowed and recently forbidden compounds in the new EU cosmetics regulation. J Pharm Biomed Anal 2016; 125:260-9. [DOI: 10.1016/j.jpba.2016.03.044] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Revised: 03/18/2016] [Accepted: 03/22/2016] [Indexed: 10/22/2022]
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Müller D, Cattaneo S, Meier F, Welz R, de Vries T, Portugal-Cohen M, Antonio DC, Cascio C, Calzolai L, Gilliland D, de Mello A. Inverse supercritical fluid extraction as a sample preparation method for the analysis of the nanoparticle content in sunscreen agents. J Chromatogr A 2016; 1440:31-36. [DOI: 10.1016/j.chroma.2016.02.060] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Revised: 02/19/2016] [Accepted: 02/21/2016] [Indexed: 10/22/2022]
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Lores M, Llompart M, Alvarez-Rivera G, Guerra E, Vila M, Celeiro M, Lamas JP, Garcia-Jares C. Positive lists of cosmetic ingredients: Analytical methodology for regulatory and safety controls - A review. Anal Chim Acta 2016; 915:1-26. [PMID: 26995636 DOI: 10.1016/j.aca.2016.02.033] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 02/21/2016] [Accepted: 02/22/2016] [Indexed: 10/22/2022]
Abstract
Cosmetic products placed on the market and their ingredients, must be safe under reasonable conditions of use, in accordance to the current legislation. Therefore, regulated and allowed chemical substances must meet the regulatory criteria to be used as ingredients in cosmetics and personal care products, and adequate analytical methodology is needed to evaluate the degree of compliance. This article reviews the most recent methods (2005-2015) used for the extraction and the analytical determination of the ingredients included in the positive lists of the European Regulation of Cosmetic Products (EC 1223/2009): comprising colorants, preservatives and UV filters. It summarizes the analytical properties of the most relevant analytical methods along with the possibilities of fulfilment of the current regulatory issues. The cosmetic legislation is frequently being updated; consequently, the analytical methodology must be constantly revised and improved to meet safety requirements. The article highlights the most important advances in analytical methodology for cosmetics control, both in relation to the sample pretreatment and extraction and the different instrumental approaches developed to solve this challenge. Cosmetics are complex samples, and most of them require a sample pretreatment before analysis. In the last times, the research conducted covering this aspect, tended to the use of green extraction and microextraction techniques. Analytical methods were generally based on liquid chromatography with UV detection, and gas and liquid chromatographic techniques hyphenated with single or tandem mass spectrometry; but some interesting proposals based on electrophoresis have also been reported, together with some electroanalytical approaches. Regarding the number of ingredients considered for analytical control, single analyte methods have been proposed, although the most useful ones in the real life cosmetic analysis are the multianalyte approaches.
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Affiliation(s)
- Marta Lores
- Laboratorio de Investigación y Desarrollo de Soluciones Analíticas (LIDSA), Departamento de Química Analitica, Nutrición y Bromatología, Facultad de Quimica, Universidade de Santiago de Compostela, Campus VIDA. Santiago de Compostela, E-15782, Spain.
| | - Maria Llompart
- Laboratorio de Investigación y Desarrollo de Soluciones Analíticas (LIDSA), Departamento de Química Analitica, Nutrición y Bromatología, Facultad de Quimica, Universidade de Santiago de Compostela, Campus VIDA. Santiago de Compostela, E-15782, Spain
| | - Gerardo Alvarez-Rivera
- Laboratorio de Investigación y Desarrollo de Soluciones Analíticas (LIDSA), Departamento de Química Analitica, Nutrición y Bromatología, Facultad de Quimica, Universidade de Santiago de Compostela, Campus VIDA. Santiago de Compostela, E-15782, Spain
| | - Eugenia Guerra
- Laboratorio de Investigación y Desarrollo de Soluciones Analíticas (LIDSA), Departamento de Química Analitica, Nutrición y Bromatología, Facultad de Quimica, Universidade de Santiago de Compostela, Campus VIDA. Santiago de Compostela, E-15782, Spain
| | - Marlene Vila
- Laboratorio de Investigación y Desarrollo de Soluciones Analíticas (LIDSA), Departamento de Química Analitica, Nutrición y Bromatología, Facultad de Quimica, Universidade de Santiago de Compostela, Campus VIDA. Santiago de Compostela, E-15782, Spain
| | - Maria Celeiro
- Laboratorio de Investigación y Desarrollo de Soluciones Analíticas (LIDSA), Departamento de Química Analitica, Nutrición y Bromatología, Facultad de Quimica, Universidade de Santiago de Compostela, Campus VIDA. Santiago de Compostela, E-15782, Spain
| | - J Pablo Lamas
- Laboratorio de Investigación y Desarrollo de Soluciones Analíticas (LIDSA), Departamento de Química Analitica, Nutrición y Bromatología, Facultad de Quimica, Universidade de Santiago de Compostela, Campus VIDA. Santiago de Compostela, E-15782, Spain
| | - Carmen Garcia-Jares
- Laboratorio de Investigación y Desarrollo de Soluciones Analíticas (LIDSA), Departamento de Química Analitica, Nutrición y Bromatología, Facultad de Quimica, Universidade de Santiago de Compostela, Campus VIDA. Santiago de Compostela, E-15782, Spain
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Balireddi V, Tatikonda KM, Tirukkovalluri SR, Teja SB, Manne S. Simultaneous Determination of Multiple Preservatives and Antioxidants in Topical Products by Ultra-Pressure Liquid Chromatography with Photo Diode Array Detector. J LIQ CHROMATOGR R T 2015. [DOI: 10.1080/10826076.2015.1057644] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Venu Balireddi
- Dr. Reddy’s Laboratories Limited, Bachupally, Hyderabad, India
| | | | | | | | - Srikanth Manne
- Dr. Reddy’s Laboratories Limited, Bachupally, Hyderabad, India
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Ocaña-González JA, Villar-Navarro M, Ramos-Payán M, Fernández-Torres R, Bello-López MA. New developments in the extraction and determination of parabens in cosmetics and environmental samples. A review. Anal Chim Acta 2015; 858:1-15. [DOI: 10.1016/j.aca.2014.07.002] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Revised: 06/20/2014] [Accepted: 07/02/2014] [Indexed: 11/25/2022]
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40
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Cacho JI, Campillo N, Viñas P, Hernández-Córdoba M. Determination of synthetic phenolic antioxidants in soft drinks by stir-bar sorptive extraction coupled to gas chromatography-mass spectrometry. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2015; 32:665-73. [PMID: 25622305 DOI: 10.1080/19440049.2015.1011715] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The synthetic phenolic antioxidants butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT) and tert-butyl hydroquinone (TBHQ) were pre-concentrated by stir-bar sorptive extraction and thermally desorbed (SBSE-TD) before analysis by GC-MS. Several parameters affecting the derivatisation step and both SBSE extraction and thermal desorption were carefully optimised. When the analyses of BHA and TBHQ in their acetylated, silylated and underivatised forms were compared, the best results were obtained when the in-situ derivatisation procedure with acetic anhydride was employed. Quantification was carried out using carvacrol as the internal standard, providing quantification limits of between 0.11 and 0.15 ng ml(-1), depending on the compound. Recovery assays for samples spiked at two concentration levels, 1 and 5 ng ml(-1), provided recoveries in the 81-117% range. The proposed method was applied in the analysis canned soft drinks and the analytes were found in five of the 10 samples analysed.
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Affiliation(s)
- Juan Ignacio Cacho
- a Department of Analytical Chemistry, Faculty of Chemistry , Regional Campus of International Excellence 'Campus Mare Nostrum' University of Murcia , Murcia , Spain
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41
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Carrasco-Correa EJ, Vela-Soria F, Ballesteros O, Ramis-Ramos G, Herrero-Martínez JM. Sensitive determination of parabens in human urine and serum using methacrylate monoliths and reversed-phase capillary liquid chromatography–mass spectrometry. J Chromatogr A 2015; 1379:65-73. [DOI: 10.1016/j.chroma.2014.12.053] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Revised: 12/05/2014] [Accepted: 12/18/2014] [Indexed: 11/24/2022]
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42
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Determination of Parabens in Cosmetics by Liquid-Phase Microextractions and High-Performance Liquid Chromatography–Diode Array Detection. J LIQ CHROMATOGR R T 2014. [DOI: 10.1080/10826076.2014.883535] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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43
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Martín JMP, Freire PF, Daimiel L, Martínez-Botas J, Sánchez CM, Lasunción MÁ, Peropadre A, Hazen MJ. The antioxidant butylated hydroxyanisole potentiates the toxic effects of propylparaben in cultured mammalian cells. Food Chem Toxicol 2014; 72:195-203. [DOI: 10.1016/j.fct.2014.07.031] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Revised: 07/10/2014] [Accepted: 07/14/2014] [Indexed: 02/06/2023]
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44
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Viñas P, Pastor-Belda M, Campillo N, Bravo-Bravo M, Hernández-Córdoba M. Capillary liquid chromatography combined with pressurized liquid extraction and dispersive liquid–liquid microextraction for the determination of vitamin E in cosmetic products. J Pharm Biomed Anal 2014; 94:173-9. [DOI: 10.1016/j.jpba.2014.02.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Accepted: 02/03/2014] [Indexed: 01/30/2023]
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46
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Development of a multi-preservative method based on solid-phase microextraction–gas chromatography–tandem mass spectrometry for cosmetic analysis. J Chromatogr A 2014; 1339:13-25. [DOI: 10.1016/j.chroma.2014.02.075] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 02/23/2014] [Accepted: 02/24/2014] [Indexed: 11/20/2022]
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47
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Khani R, Ghasemi JB, Shemirani F. Simultaneous multicomponent spectrophotometric monitoring of methyl and propyl parabens using multivariate statistical methods after their preconcentration by robust ionic liquid-based dispersive liquid-liquid microextraction. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 122:295-303. [PMID: 24317257 DOI: 10.1016/j.saa.2013.11.072] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Revised: 10/30/2013] [Accepted: 11/10/2013] [Indexed: 06/02/2023]
Abstract
A powerful and efficient signal-preprocessing technique that combines local and multiscale properties of the wavelet prism with the global filtering capability of orthogonal signal correction (OSC) is applied for pretreatment of spectroscopic data of parabens as model compounds after their preconcentration by robust ionic liquid-based dispersive liquid-liquid microextraction method (IL-DLLME). In the proposed technique, a mixture of a water-immiscible ionic liquid (as extraction solvent) [Hmim][PF6] and disperser solvent is injected into an aqueous sample solution containing one of the IL's ions, NaPF6, as extraction solvent and common ion source. After preconcentration, the absorbance of the extracted compounds was measured in the wavelength range of 200-700 nm. The wavelet orthogonal signal correction with partial least squares (WOSC-PLS) method was then applied for simultaneous determination of each individual compound. Effective parameters, such as amount of IL, volume of the disperser solvent and amount of NaPF6, were inspected by central composite design to identify the most important parameters and their interactions. The effect of pH on the sensitivity and selectivity was studied according to the net analyte signal (NAS) for each component. Under optimum conditions, enrichment factors of the studied compounds were 75 for methyl paraben (MP) and 71 for propyl paraben (PP). Limits of detection for MP and PP were 4.2 and 4.8 ng mL(-)(1), respectively. The root mean square errors of prediction for MP and PP were 0.1046 and 0.1275 μg mL(-)(1), respectively. The practical applicability of the developed method was examined using hygienic, cosmetic, pharmaceutical and natural water samples.
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Affiliation(s)
- Rouhollah Khani
- School of Chemistry, University College of Science, University of Tehran, P.O. Box 14155-6455, Tehran, Iran
| | - Jahan B Ghasemi
- Department of Chemistry, Faculty of Sciences, K.N. Toosi University of Technology, Tehran 16617, Iran
| | - Farzaneh Shemirani
- School of Chemistry, University College of Science, University of Tehran, P.O. Box 14155-6455, Tehran, Iran.
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Gholivand MB, Shamsipur M, Dehdashtian S, Rajabi HR. Development of a selective and sensitive voltammetric sensor for propylparaben based on a nanosized molecularly imprinted polymer–carbon paste electrode. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 36:102-7. [DOI: 10.1016/j.msec.2013.11.021] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Revised: 10/15/2013] [Accepted: 11/15/2013] [Indexed: 10/26/2022]
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49
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Hou F, Deng X, Jiang X, Yu J. Determination of Parabens in Beverage Samples by Dispersive Liquid–Liquid Microextraction Based on Solidification of Floating Organic Droplet. J Chromatogr Sci 2013; 52:1332-8. [DOI: 10.1093/chromsci/bmt175] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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50
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Wang JY, Wu HL, Chen Y, Zhai M, Qing XD, Yu RQ. Quantitative determination of butylated hydroxyanisole and n-propyl gallate in cosmetics using three-dimensional fluorescence coupled with second-order calibration. Talanta 2013; 116:347-53. [DOI: 10.1016/j.talanta.2013.05.028] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2013] [Revised: 05/07/2013] [Accepted: 05/11/2013] [Indexed: 10/26/2022]
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