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Rocchi R, Rosato R, Bellocci M, Migliorati G, Scarpone R. Ion Chromatography–High-Resolution Mass Spectrometry Method for the Determination of Bromide Ions in Cereals and Legumes: New Scenario for Global Food Security. Foods 2022; 11:foods11162385. [PMID: 36010386 PMCID: PMC9407437 DOI: 10.3390/foods11162385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/04/2022] [Accepted: 08/05/2022] [Indexed: 11/16/2022] Open
Abstract
The new scenario for global food production and supply is decidedly complex given the current forecast of an increase in food fragility due to international tensions. In this period, exports from other parts of the world require different routes and treatments to preserve the food quality and integrity. Fumigation is a procedure used for the killing, removal, or rendering infertile of pests, with serious dangers to human health. The most-used fumigants are methyl bromide and ethylene dibromide. It is important to bear in mind that the soil may contain bromide ions naturally or from anthropogenic source (fertilizers and pesticides that contain bromide or previous fumigations). Different methods (titrimetric, spectrophotometric, and fluorometric approaches) are available to rapidly determine the amount of bromide ion on site in the containers, but these are non-specific and with high limits of quantification. The increasing interest in healthy food, without xenobiotic residues, requires the use of more sensitive, specific, and accurate analytical methods. In order to help give an overview of the bromide ion scenario, a new, fast method was developed and validated according to SANTE 11312/2021. It involves the determination of bromide ion in cereals and legumes through ion chromatography–Q-Orbitrap. The extraction was performed by the QuPPe method, but some modifications were applied based on the matrix. The method described here was validated at four different levels. Recoveries were satisfactory and the mean values ranged between 99 and 106%, with a relative standard deviation lower than 3%. The linearity in the matrix was evaluated to be between 0.010 and 2.5 mg kg−1, with a coefficient of determination (R2) of 0.9962. Finally, the proposed method was applied to different cereals and legumes (rice, wheat, beans, lentils pearled barley, and spelt) and tested with satisfactory results in EUPT-SMR16 organized by EURL.
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GÜLER M, DESTANOĞLU O, GÜMÜŞ YILMAZ G. Simultaneous determination of fluoride, acetate, formate, chloride, nitrate, and sulphate in distilled alcoholic beverages with ion chromatography/conductivity detector. JOURNAL OF THE TURKISH CHEMICAL SOCIETY, SECTION A: CHEMISTRY 2020. [DOI: 10.18596/jotcsa.700636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Campos AF, Cassella RJ. Development of an extraction method for the determination of inorganic anions (chloride, sulfate and phosphate) in edible oils from different origins by ion chromatography. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2018; 55:3922-3929. [PMID: 30228390 DOI: 10.1007/s13197-018-3317-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 06/20/2018] [Accepted: 06/26/2018] [Indexed: 11/28/2022]
Abstract
The present work reports the development of ion chromatography conductivity based detection analytical method for the determination of some inorganic anions (chloride, sulfate and phosphate) in vegetable oils. The analytes were extracted from samples prior to injection into the chromatographic system, employing a simple two-step procedure. In the first step, 4.5 g of the sample was vigorously mixed with 15 mL of deionized water and then mixed for 15 min on a horizontal roller. Afterwards, the mixture was sonicated for 15 min in an ultrasonic bath. Then, the mixture was centrifuged for 15 min at 5000 rpm and, after filtration through a 0.22 μm membrane, the aqueous phase was used for the determination of the analytes. A clean-up step was introduced in the analysis of olive oils in order to correct an increase of the baseline of the chromatograms. The limits of detection and quantification of the proposed method were, respectively, 0.005 and 0.02 μg g-1 for chloride, 0.02 and 0.06 μg g-1 for phosphate and 0.008 and 0.03 μg g-1 for sulfate. Vegetable oils from corn, canola, soybean, sunflower and olive were analyzed and recovery tests (94.8 ± 10.1% mean recovery) were performed to attest the accuracy of the proposed method.
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Affiliation(s)
- Adriana Fernández Campos
- 1Departamento de Química Analítica, Universidade Federal Fluminense, Outeiro de São João Batista s/n, Centro, Niterói, RJ 24020-141 Brazil.,2Escuela de Química, Universidad de Costa Rica, Sede "Rodrigo Facio Brenes", Montes de Oca, C.P. 2060, San José, Costa Rica
| | - Ricardo J Cassella
- 1Departamento de Química Analítica, Universidade Federal Fluminense, Outeiro de São João Batista s/n, Centro, Niterói, RJ 24020-141 Brazil
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A simple analytical method for determining inorganic anions and formate in virgin olive oils by capillary electrophoresis with capacitively coupled contactless conductivity detection. Food Control 2015. [DOI: 10.1016/j.foodcont.2015.04.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Amina Setiawati T, Guyomarc’h F, Beaucher E, Gaucheron F. ION EXCHANGE CHROMATOGRAPHY WITH CONDUCTIVITY DETECTION COMPARED TO SPECTROPHOTOMETRY TO ASSAY PHOSPHATE IN MILK AND MILK PRODUCTS. JURNAL TEKNOLOGI DAN INDUSTRI PANGAN 2015. [DOI: 10.6066/jtip.2015.26.1.115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Liu D, Guo H, Chen Z, Wang Y. Effect of cadmium on the extracellular Na⁺, K⁺, and Ca²⁺ in the gill and small intestine of goldfish Carassius auratus. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2014; 37:672-678. [PMID: 24583410 DOI: 10.1016/j.etap.2014.02.002] [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: 11/05/2013] [Revised: 01/26/2014] [Accepted: 02/01/2014] [Indexed: 06/03/2023]
Abstract
In this study, the toxic effect of cadmium on extracellular Na(+), K(+), and Ca(2+) in the gill and small intestine of goldfish Carassius auratus was determined with the technique of ion chromatograph. Two-way ANOVA indicated that the two factors (Cd(2+) treatment and time) and the interaction factor had significant effect on the level of Na(+), K(+), and Ca(2+) in the small intestine and gill. 1.0 mg/L Cd(2+) significantly increased Ca(2+) level in the small intestine, but Ca(2+) level in the gill was significantly decreased by 1.0 and 5.0 mg/L Cd(2+) at 24, 48, and 72 h. Na(+) and K(+) level in the small intestine and gill was increased by 1.0 mg/L Cd(2+) at three time points, but increased by 5.0 mg/L Cd(2+) at a certain different time. In addition, Na(+) level was significantly decreased by 5.0 mg/L Cd(2+) at 24 or 48 h in the small intestine and gill. The results indicated that Cd(2+) played an important role in regulating the level of Na(+), K(+), and Ca(2+) in the small intestine and gill of goldfish C. auratus. A method was constructed to investigate the extracellular Na(+), K(+) and Ca(2+) in the tissues of gold fish with ion chromatography.
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Affiliation(s)
- Dongwu Liu
- School of Life Sciences, Shandong University of Technology, Zibo, Shandong Province 255049, China; Analysis and Testing Center, Shandong University of Technology, Zibo, Shandong Province 255049, China
| | - Hong Guo
- Analysis and Testing Center, Shandong University of Technology, Zibo, Shandong Province 255049, China
| | - Zhiwei Chen
- School of Life Sciences, Shandong University of Technology, Zibo, Shandong Province 255049, China.
| | - Ying Wang
- Analysis and Testing Center, Shandong University of Technology, Zibo, Shandong Province 255049, China
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Licata P, Naccari F, Di Bella G, Lo Turco V, Martorana V, mo Dugo G. Inorganic anions in goat and ovine milk from Calabria (Italy) by suppressed ion chromatography. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2013; 30:458-65. [DOI: 10.1080/19440049.2012.747222] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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8
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Zhang ZW, Xu YB, Wang CH, Chen KB, Tong HW, Liu SM. Direct determination of hydrogen cyanide in cigarette mainstream smoke by ion chromatography with pulsed amperometric detection. J Chromatogr A 2011; 1218:1016-9. [DOI: 10.1016/j.chroma.2010.12.100] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2010] [Revised: 12/19/2010] [Accepted: 12/24/2010] [Indexed: 10/18/2022]
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9
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Narukawa T, Chiba K. Heat-assisted aqueous extraction of rice flour for arsenic speciation analysis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:8183-8188. [PMID: 20586491 DOI: 10.1021/jf101317n] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
A versatile heat-assisted pretreatment aqueous extraction method for the analysis of arsenic species in rice was developed. Rice flour certified reference materials NIST SRM1568a and NMIJ CRM 7503-a and a flour made from polished rice were used as samples, and HPLC-ICP-MS was employed for the determination of arsenic species. Arsenite [As(III)], arsenate [As(V)], monomethylarsonic acid (MMAA) and dimethylarsinic acid (DMAA) were detected in NIST SRM, and As(III), As(V) and DMAA were found in NMIJ CRM and the prepared polished rice flour. The sums of the concentrations of all species in each rice flour sample were 97-102% of the total arsenic concentration in each sample.
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Affiliation(s)
- Tomohiro Narukawa
- National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki, Japan.
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Metals in wine. ACTA ACUST UNITED AC 2009. [DOI: 10.1201/9780203634523.ch9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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11
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Isildak O. Determination of inorganic anions in mushrooms by ion chromatography with potentiometric detection. JOURNAL OF ANALYTICAL CHEMISTRY 2009. [DOI: 10.1134/s1061934809120077] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Kumar SD, Narayan G, Hassarajani S. Determination of anionic minerals in black and kombucha tea using ion chromatography. Food Chem 2008. [DOI: 10.1016/j.foodchem.2008.05.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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13
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Enhanced trace element analysis of plant materials after accelerated pulsed UV digestion. J Radioanal Nucl Chem 2008. [DOI: 10.1007/s10967-007-6893-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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14
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HAMANO-NAGAOKA M, NISHIMURA T, MATSUDA R, MAITANI T. Evaluation of a Nitric Acid-based Partial-digestion Method for Selective Determination of Inorganic Arsenic in Rice. Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) 2008; 49:95-9. [DOI: 10.3358/shokueishi.49.95] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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15
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Hamano-Nagaoka M, Hanaoka K, Usui M, Nishimura T, Maitani T. Nitric Acid-based Partial-digestion Method for Selective Determination of Inorganic Arsenic in Hijiki and Application to Soaked Hijiki. Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) 2008; 49:88-94. [PMID: 18503244 DOI: 10.3358/shokueishi.49.88] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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16
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NOVAKOVA M, KRIVANKOVA L, BARTOS M, URBANOVA V, VYTRAS K. Isotachophoretic determination of hydrosulfite and metabisulfite in technical samples. Talanta 2007; 74:183-9. [DOI: 10.1016/j.talanta.2007.05.045] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2007] [Revised: 05/16/2007] [Accepted: 05/24/2007] [Indexed: 10/23/2022]
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17
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Dietz C, Sanz J, Sanz E, Muñoz-Olivas R, Cámara C. Current perspectives in analyte extraction strategies for tin and arsenic speciation. J Chromatogr A 2007; 1153:114-29. [PMID: 17157305 DOI: 10.1016/j.chroma.2006.11.064] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2006] [Revised: 11/16/2006] [Accepted: 11/21/2006] [Indexed: 10/23/2022]
Abstract
Nowadays, reliable and robust detectors can be considered standard laboratory instrumentation, which, for most of the elements provide quantitation limits in the lower ng/g range. Despite these advances in detector technology, sample preparation is by far the most important error source in modern analytical method development and can be judged as the "Achilles' heel" of any analytical process regarding reliability of the obtained results and time consumption. The aim of the present review is to highlight modern trends for tin and arsenic speciation, as these analytes can be considered as models for challenges in modern method development in this field. First background information, legislative aspects and current needs are elucidated. Then the role of sample treatment within the process of method development in speciation is discussed, followed by a presentation of modern extraction techniques, matching the requirements for arsenic and tin speciation analysis: to provide mild conditions in order to ensure species preservation, to improve species recovery, to enhance sample throughput and to be suitable for hyphenation with chromatographic separation systems. The review includes applications on tin and arsenic speciation, covering the period of 2001-2006.
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Affiliation(s)
- Christian Dietz
- Department of Analytical Chemistry, Faculty of Chemistry, University Complutense de Madrid, Ciudad Universitaria, 28040 Madrid, Spain
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Dawidowicz AL, Wianowska D, Gawdzik J, Smolarz DH. Optimization of ASE Conditions for the HPLC Determination of Rutin and Isoquercitrin inSambucus nigraL. J LIQ CHROMATOGR R T 2007. [DOI: 10.1081/jlc-120023253] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Andrzej L. Dawidowicz
- a Faculty of Chemistry , Maria Curie Sklodowska University , Marii Curie Sklodowskiej 3, Lublin , 20‐031 , Poland
| | - Dorota Wianowska
- a Faculty of Chemistry , Maria Curie Sklodowska University , Marii Curie Sklodowskiej 3, Lublin , 20‐031 , Poland
| | - Jan Gawdzik
- a Faculty of Chemistry , Maria Curie Sklodowska University , Marii Curie Sklodowskiej 3, Lublin , 20‐031 , Poland
| | - Danuta H. Smolarz
- b Department of Pharmaceutical Botany , Medical University , Lublin , Poland
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MICHALSKI RAJMUND. SIMULTANEOUS DETERMINATION OF COMMON INORGANIC ANIONS IN BLACK AND HERBAL TEA BY SUPPRESSED ION CHROMATOGRAPHY. J FOOD QUALITY 2006. [DOI: 10.1111/j.1745-4557.2006.00098.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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20
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Sajonz P, Bookalam J, Miller RA. Separation of Periodate, Iodate and Iodide on a C-18 Stationary Phase. Dependence of the Retention on the Temperature and Solvent Composition. Monitoring of an Oxidative Cleavage Reaction. Chromatographia 2006. [DOI: 10.1365/s10337-006-0082-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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21
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Open Tubular Monolith Formation and C18 Ligand Immobilization in Silica Capillary by Microwave Heating for Capillary Electrochromatography. B KOREAN CHEM SOC 2006. [DOI: 10.5012/bkcs.2006.27.9.1459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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22
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Polesello S, Tartari G, Giacomotti P, Mosello R, Cavalli S. Determination of total dissolved inorganic carbon in freshwaters by reagent-free ion chromatography. J Chromatogr A 2006; 1118:56-61. [PMID: 16620857 DOI: 10.1016/j.chroma.2006.03.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2005] [Revised: 03/03/2006] [Accepted: 03/06/2006] [Indexed: 11/19/2022]
Abstract
Studies of inorganic carbon cycle in natural waters provide important information on the biological productivity and buffer capacity. Determination of total inorganic carbon, alkalinity and dissolved carbon dioxide gives an indication of the balance between photosynthesis and respiration by biota, both within the water column and sediments, and carbon dioxide transfers from the water column to the atmosphere. There are few methods to measure and distinguish the different forms of inorganic carbon, but all require a measure or an indirect quantification of total inorganic carbon. A direct measurement of TIC in water is made possible by the introduction of electrolytic generated hydroxide eluent in ion chromatography which allows to detect a chromatographic peak for carbonate. The advantage of this method is that all the inorganic forms of carbon are converted in carbonate at eluent pH and can be detected as a single peak by conductivity detection. Repeatability of carbonate peak was evaluated at different levels from 0.02 to 6 mequiv.l(-1) both in high purity water and in real samples and ranged from 1 to 9%. The calibration curve was not linear and has to be fitted by a quadratic curve. Limit of detection was estimated to be 0.02 mequiv.l(-1). Accuracy has been estimated by comparing ion chromatography method with total inorganic carbon calculated from alkalinity and pH. The correlation between the two methods was good (R(2)=0.978, n=141). The IC method has been applied to different typologies of surface waters (alpine and subalpine lakes and rivers) characterised by different chemical characteristics (alkalinity from 0.05 to 2 mequiv.l(-1) and pH from 6.7 to 8.5) and low total organic carbon concentrations. This analytical method allowed to describe the distribution of TIC along the water column of two Italian deep lakes.
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Chen SP, Huang T, Sun SG. A new method of ion chromatography technology for speedy determination and analysis in organic electrosynthesis of glyoxylic acid. J Chromatogr A 2005; 1089:142-7. [PMID: 16130782 DOI: 10.1016/j.chroma.2005.06.076] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Based on ion chromatography (IC) technology, we have developed a new method that combines ion chromatography with a conductivity detector to separate and determine the substances of glyoxal, glycolic acid, oxalic acid and glyoxylic acid. The ion chromatography was applied for the first time in quantitative determination of substances involved in electrosynthesis of glyoxylic acid. The method has been applied to separate and analyze simultaneously either glyoxylic acid and glyoxal in electroxidation of glyoxal, or glyoxylic acid and oxalic acid in electroreduction of oxalic acid. An aqueous Na2CO3-NaHCO3 or NaOH-Na2CO3 solution was confirmed to be the most desirable eluent. The experimental results demonstrated that the detection sensitivity is ahead of ppm grade, and the variation coefficients such as the retention time, the peak height and the peak area outperform 2%. All the recoveries of the detected substances are ranged between 97 and 103%. The method exhibits advantages of high selectivity, high sensitivity, speediness and simple apparatus requirement. Furthermore, simultaneous determination of a mixture of several substances can be achieved by the developed method, and even a neutral molecule of glyoxal can be also determined by choosing an appropriate composition and concentration of eluent.
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Affiliation(s)
- Sheng-Pei Chen
- Department of Chemistry, State Key Laboratory, Physical Chemistry of Solid Surfaces, Institute of Physical Chemistry, Xiamen University, Xiamen 361005, People's Republic of China.
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Determination of some inorganic anions and heavy metals in D.O.C. Golden and Amber Marsala wines: statistical study of the influence of ageing period, colour and sugar content. Food Chem 2005. [DOI: 10.1016/j.foodchem.2004.09.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Dawidowicz AL, Wianowska D. PLE in the analysis of plant compounds. J Pharm Biomed Anal 2005; 37:1155-9. [PMID: 15862700 DOI: 10.1016/j.jpba.2004.10.038] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2004] [Revised: 10/28/2004] [Accepted: 10/29/2004] [Indexed: 11/28/2022]
Abstract
A broad spectrum of sample preparation methods is currently used for the isolation of pharmacologically active compounds from plant and herbal materials. The paper compares the effectiveness of infusion, microwave assisted solvent extraction (MASE), matrix solid-phase dispersion (MSPD) and pressurised liquid extraction (PLE) as sample preparation methods for the isolation of caffeine from green tea leaves. The effect of PLE variables, such as extraction temperature, pressure and time, on the yield of caffeine from the investigated matrix is discussed. The obtained results revealed that PLE, in comparison with other sample preparation methods applied, has significantly lower efficacy for caffeine isolation from green tea leaves. The evaluation of PLE conditions leads to the conclusion that elevated pressure applied in the PLE process is the factor hindering the extraction.
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Affiliation(s)
- Andrzej L Dawidowicz
- Faculty of Chemistry, Maria Curie Sklodowska University, 20-031 Lublin, Pl. Marii Curie Sklodowskiej 3, Poland.
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Bolanča T, Cerjan‐Stefanović Š, Srečnik G, Debeljak Ž, Novič M. Comparison of Retention Modeling in Ion Chromatography by Using Multiple Linear Regression and Artificial Neural Networks. SEP SCI TECHNOL 2005. [DOI: 10.1081/ss-200052816] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Paull B, Nesterenko PN. Novel ion chromatographic stationary phases for the analysis of complex matrices. Analyst 2004; 130:134-46. [PMID: 15665965 DOI: 10.1039/b406355b] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ion chromatography (IC) has a proven track record in the determination of inorganic and organic anions and cations in complex matrices. Recently, application of IC to the separation and determination of bio-molecules such as amino acids, carbohydrates, nucleotides, proteins and peptides has also received much attention. The key to the determination of all of the above species in the most analytically challenging complex matrices is the ability to manipulate selectivity through control of stationary phase chemistry, mobile phase chemistry and the choice of detection method. This Tutorial Review summarises some of the most significant recent advances made in IC stationary phase technology. In particular, the review details stationary phases specifically designed for ion analysis in complex sample matrices, and considers in which direction future stationary phase development might proceed.
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Affiliation(s)
- Brett Paull
- National Centre for Sensor Research, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland.
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Gapper L, Fong B, Otter D, Indyk H, Woollard D. Determination of nitrite and nitrate in dairy products by ion exchange LC with spectrophotometric detection. Int Dairy J 2004. [DOI: 10.1016/j.idairyj.2004.02.015] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Szłyk E, Jastrzębska A, Brudka B. Determination of total phosphorus in soya food samples by capillary isotachophoresis (cITP). Talanta 2004; 63:575-80. [DOI: 10.1016/j.talanta.2003.11.038] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2003] [Revised: 11/03/2003] [Accepted: 11/21/2003] [Indexed: 11/15/2022]
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Cataldi TRI, Margiotta G, Del Fiore A, Bufo SA. Ionic content in plant extracts determined by ion chromatography with conductivity detection. PHYTOCHEMICAL ANALYSIS : PCA 2003; 14:176-183. [PMID: 12793466 DOI: 10.1002/pca.700] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A simple method is described for the determination of the ionic content of vegetable samples by ion chromatography with suppressed conductivity detection. Extracts of leaves of cucumber (Cucumis sativus), leaves and cotyledons of watermelon (Citrullus lanantus), cotyledons of zucchini (Cucurbitapepo), and leaves and roots of olive (Olea europaea) obtained at room temperature yielded chromatographic profiles with substantial differences in the relative contents of Cl-, NO3-, HPO4(2-) and SO4(2-) as well as of Na+, NH4+, K+, Mg2+ and Ca2+. Although NO3-, Cl- and K+ were common to each extracted sample and accounted for most of the ions present, two additional anion peaks (i.e. malate and oxalate) were detected. Among the vegetable tissues investigated, olive roots contained a considerable amount of oxalate (37 mg/g dry weight), while Na+, which is present in very low amount in extracted samples of leaves and cotyledons, represented ca. 30% of the cationic content of olive roots. In all the examined tissue extracts, K+ was the main cation (16-55 mg/g dry weight) and NO3-, Cl- and HPO4(2-) were the main inorganic anions.
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Affiliation(s)
- Tommaso R I Cataldi
- Dipartimento di Chimica, Università degli Studi della Basilicata, Via N. Sauro, 85-85100 Potenza, Italy.
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Vidal M, Pascual-Martı́ M, Salvador A, Llabata C. Determination of essential metals in complete diet feed by flow injection and flame atomic absorption spectrometry. Microchem J 2002. [DOI: 10.1016/s0026-265x(02)00037-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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32
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Buldini PL, Cavalli S, Mevoli A, Sharma JL. Ion chromatographic and voltammetric determination of heavy and transition metals in honey. Food Chem 2001. [DOI: 10.1016/s0308-8146(01)00132-7] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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33
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Yordanov N, Novakova E, Lubenova S. Consecutive estimation of nitrate and nitrite ions in vegetables and fruits by electron paramagnetic resonance spectrometry. Anal Chim Acta 2001. [DOI: 10.1016/s0003-2670(01)00977-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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34
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Stefanović SC, Bolanca T, Curković L. Simultaneous determination of six inorganic anions in drinking water by non-suppressed ion chromatography. J Chromatogr A 2001; 918:325-34. [PMID: 11407579 DOI: 10.1016/s0021-9673(01)00739-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A non-suppressed ion chromatographic method with conductometric detection is described for the simultaneous determination of six inorganic anions: fluoride, chloride, nitrite, bromide, nitrate and sulphate. The separation was achieved on a low-capacity anion-exchange column Metrohm IC Anion Column Super Sep, with a mobile phase consisting of phtalic acid dissolved in high-purity water, 2-amino-2-hydroxymethyl-1,3-propendiol and acetonitrile. In this work computer optimization procedures, using computer programs to select chromatographic conditions have been used, leading to the achievement of a desired separation. By using the different optimization methods in an integrated manner it is, however, possible to both speed method development, by reducing unnecessary experimentation, and to overcome the many shortcomings of each method, because of the different approaches. The purpose of this work is to improve and characterise the method for simultaneous determination of six inorganic anions in drinking water by non-suppressed ion chromatography, using optimization procedures, in order to be applied to the routine analysis. The proposed method has numerous advantages over the other widely used non-suppressed ion chromatography methods: higher selectivity, shorter analysis time, lower quantitation and detection limits. The performance characteristics of the method were established by determining the following validation parameters: precision and accuracy, linearity, detection limits and quantitation limits.
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Affiliation(s)
- S C Stefanović
- Laboratory of Analytical Chemistry, Faculty of Chemical Engineering and Technology, Zagreb, Croatia
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35
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Ellington JJ, Evans JJ. Determination of perchlorate at parts-per-billion levels in plants by ion chromatography. J Chromatogr A 2000; 898:193-9. [PMID: 11117417 DOI: 10.1016/s0021-9673(00)00842-6] [Citation(s) in RCA: 69] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
A method for the analysis of perchlorate in plants was developed, based on dry weight, and applied to the analysis of plant organs, foodstuffs, and plant products. The method reduced greatly the ionic interferences in water extracts of plant materials. The high background conductivity, due to the plant matrix, was reduced sufficiently to allow quantitation of perchlorate with little or no matrix interference. Ion chromatography (IC) on a microbore AS16 anion-exchange column and a conductivity detector was used for separation and detection of perchlorate from the ionic plant extract. The extract was heated to precipitate proteins, centrifuged, exposed to alumina, and filtered through a cartridge filled with divinylbenzene to yield a water clear extract for IC analysis, even from highly colored solutions. Heating the extract and treatment with alumina reduced substantially the ionic content of the extracts without loss of perchlorate.
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Affiliation(s)
- J J Ellington
- US Environmental Protection Agency, Ecosystems Research Division, Athens, GA 30605, USA.
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36
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Carrapiso AI, García C. Development in lipid analysis: some new extraction techniques and in situ transesterification. Lipids 2000; 35:1167-77. [PMID: 11132176 DOI: 10.1007/s11745-000-0633-8] [Citation(s) in RCA: 137] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The development of methods for analyzing fatty acids that provide rapid and reliable results is currently in great demand. Recently, different lipid extraction procedures such as microwave or supercritical fluid extraction have heen researched. Both procedures avoid the use of large volumes of solvents and provide rapid lipid isolations. Only a few papers have reported work on microwave extraction, hut many studies ahout supercritical fluid extraction have heen carried out and have heen gaining acceptance within the scientific community. Avoiding the lipid isolation step, hy synthesizing fatty acid esters hy simultaneous lipid extraction and derivatization through in situ reactions, has also heen proposed. The saving of time and reagents is significant. Owing to the differences among the procedures, some knowledge of their characteristics is essential in order to improve methods and achieve reliable and accurate results. Clearly, results depend on factors such as the type of catalysis selected, the use of nonpolar solvents, heating applied during the synthesis, and the degree of suitability of the procedure chosen for the particular features of each sample.
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Affiliation(s)
- A I Carrapiso
- Laboratory of Food Technology, Extremadura University, Cáceres, Spain.
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37
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Gaucheron F, Le Graet Y. Determination of ammonium in milk and dairy products by ion chromatography. J Chromatogr A 2000; 893:133-42. [PMID: 11043594 DOI: 10.1016/s0021-9673(00)00695-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
To control the quality and the biochemical evolution of milk and dairy products during their technological transformations, it is interesting to determine their ammonium concentrations. A chromatographic method for the determination of this compound is proposed. The method is based on the separation of ammonium by cation-exchange chromatography and its detection by suppressed conductivity. With an appropriate sample preparation, this method enabled identification and quantification of ammonium with good repeatability (relative standard deviation of about 5%). Moreover, good sensitivity (less than 0.5 mg/kg) and no interference between ammonium and other matrix components were determined. It was also shown that this method offers a very promising alternative for studying changes in ammonium concentration of milk or caseinate after their heat treatments and in different dairy products such as yoghurt and cheeses (hard cooked and mould ripened cheeses).
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Affiliation(s)
- F Gaucheron
- INRA, Laboratoire de Recherches de Technologie Laitière, Rennes, France.
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Buldini PL, Mevoli A, Quirini A. On-line microdialysis-ion chromatographic determination of inorganic anions in olive-oil mill wastewater. J Chromatogr A 2000; 882:321-8. [PMID: 10895954 DOI: 10.1016/s0021-9673(00)00434-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A fully automated method is presented for the determination of inorganic anions in olive-oil mill effluents using on-line dialysis-ion chromatography. The wastewater is first of all sonicated at room temperature to make it homogeneous, then diluted and microdialized. Most of the organic load of the effluents is removed in a few minutes without using reagents, while soluble anion quantitation remains unaffected. The clear solution is analyzed for the inorganic anions content by direct injection on to an ion chromatograph equipped with a conductivity detector. In the absence of standards, the separation efficiency of microdialysis has been investigated by spiking wastewater samples as well as standard oil emulsions with varying amounts of inorganic anions and subjecting them to microdialysis for different periods of time prior to performing instrumental analysis. Excellent spike recoveries and low relative standard deviations are obtained for all the anions if a 10 min microdialysis time is overcame. Chloride, nitrite, nitrate, phosphate and sulphate are not affected by the microdialysis procedure and their recovery is between 96 and 104% in wastewater as well as in standard oil emulsion. Calibration plots are linear over about two orders of magnitude. The dialysis membrane has been replaced after more than 100 analyses. The UV photolysis pre-treatment of the same sample evidences the different information that can be obtained by the two sample pre-treatment procedures.
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Abstract
The time period covered for this review includes articles published from 1997 to 1999, with the addition of a few classic references. The purpose of the review is to include the most relevant works from each topic area of the determination of inorganic anions by ion chromatography, including new sample pretreatments, new separation methods, new detection systems and the latest applications in the field of environmental, water, foods, etc. samples. Experimental conditions such as stationary phase, eluent, detection mode, as well as matrix are summarized in a table.
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Affiliation(s)
- B López-Ruiz
- Sección Departamental Química Analítica, Facultad de Farmacia, Universidad Complutense de Madrid, Spain.
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