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Kang SH, Chang SY, Do KC, Chi SC, Chung DS. High-performance liquid chromatography with a column-switching system and capillary electrophoresis for the determination of ibuprofen in plasma. JOURNAL OF CHROMATOGRAPHY. B, BIOMEDICAL SCIENCES AND APPLICATIONS 1998; 712:153-60. [PMID: 9698237 DOI: 10.1016/s0378-4347(98)00134-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Quantitative aspects of high-performance liquid chromatography with a column-switching system (CSS-HPLC) and capillary electrophoresis (CE) were investigated for the determination of ibuprofen in plasma. For CSS-HPLC, 100 microl of plasma was directly injected onto the column system for the three separation steps: (1) deproteinization and fractionation of plasma samples with a polymer-coated mixed-function phase column, (2) concentration with an intermediate column and (3) final separation with a main column. For CE, a mixture of 50 microl of plasma and 1 ml of acetonitrile was centrifuged and the supernatant was introduced onto the capillary (66 cmX50 microm I.D.; 62 cm to detector) at 20 degrees C. Run buffer was 250 mM sodium borate buffer (pH 8.5) and applied electric field was 379 V cm(-1). Linear dynamic ranges were 0.1-250 microg ml(-1) in CSS-HPLC and 1-1000 microg ml(-1) in CE. Intra-day and inter-day coefficients of variation were less than 5.6% and 6.5% for CSS-HPLC, 6.3% and 6.5% for CE, respectively. The limits of detection (S/N=3) for CSS-HPLC and CE were 25 ng ml(-1) and 300 ng ml(-1), respectively. CSS-HPLC was superior in simplicity and sensitivity, while CE was better in efficiency, rapidity, and cost.
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Affiliation(s)
- S H Kang
- Department of Chemistry, Seoul National University, South Korea
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Save TK, Parmar DV, Devarajan PV. High-performance thin-layer chromatographic determination of ibuprofen in plasma. JOURNAL OF CHROMATOGRAPHY. B, BIOMEDICAL SCIENCES AND APPLICATIONS 1997; 690:315-9. [PMID: 9106058 DOI: 10.1016/s0378-4347(96)00326-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A high-performance thin-layer chromatographic (HPTLC) method for quantitation of ibuprofen from plasma is described. The drug was extracted from acidified plasma with hexane-isopropanol (85:15). The mobile phase composition was n-hexane-ethyl acetate-anhydrous acetic acid (75:25:2). Densitometric analysis of ibuprofen was carried out at 222 nm. The calibration curves of ibuprofen in chloroform and in plasma were linear over the range 2-20 micrograms. The mean values of intercept, slope and correlation coefficient were 0.0422 +/- 0.0018. 1.0356 +/- 0.0213 and 0.9976 +/- 0.0013 for standard curves in chloroform and 0.1044 +/- 0.003, 0.8759 +/- 0.0213 and 0.9939 +/- 0.001 for standard curves in plasma, respectively. The limit of detection of ibuprofen from human plasma (assay sensitivity) was 50 ng and no interference was found from endogenous compounds. The recovery of ibuprofen from human plasma using the described extraction procedure was about 85%. The mean relative standard deviations for within-day and between-day analyses were 2.24 and 2.6% for 5 micrograms and 3.67 and 3.2% for 15 micrograms ibuprofen concentration, respectively. The method was utilized to monitor the plasma concentration of ibuprofen post administration of sustained release capsules in human patient volunteers.
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Affiliation(s)
- T K Save
- Department of Chemical Technology, University of Mumbai, Matunga, India
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Roder JD, Chen CL, Chen H, Sangiah S. Bioavailability and pharmacokinetics of ibuprofen in the broiler chicken. J Vet Pharmacol Ther 1996; 19:200-4. [PMID: 8803878 DOI: 10.1111/j.1365-2885.1996.tb00039.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The intravenous, intramuscular and oral pharmacokinetics of ibuprofen in broiler chickens were investigated. In a preliminary study, plasma ibuprofen concentration-time profiles, following i.v. (25 mg/kg) dosing were best described by a 2-compartment model. After intravenous administration, the volume of distribution at steady-state (Vd(ss)), the total systemic clearance (ClB), the elimination half-life (t1/2 beta) and the MRT were 0.303 L/kg, 482.3 ml/h.kg, 2.71 h and 1.02 h, respectively. After intramuscular administration of ibuprofen, the tmax and Cmax were 0.37 h, and 42.2 micrograms/mL, respectively, with an estimated bioavailability of 46.7%. After oral administration of ibuprofen, the tmax and Cmax were 0.31 h and 23.91 micrograms/mL, respectively, with an estimated bioavailability of 24.2%. This is a preliminary study, examining the use of ibuprofen in broiler chickens, and should be followed by tissue residue and efficacy studies in different disease states.
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Affiliation(s)
- J D Roder
- Department of Physiological Sciences, College of Veterinary Medicine, Oklahoma State University, Stillwater 74078, USA
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Ford J, Houston JB. Concentration-response relationships for three nonsteroidal anti-inflammatory drugs in the rat intestine. Hum Exp Toxicol 1995; 14:573-9. [PMID: 7576817 DOI: 10.1177/096032719501400704] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
1. The effect of diclofenac, piroxicam and (S+)-ibuprofen upon the rat intestine has been measured at constant drug plasma concentrations in the rat, using (51Cr)-EDTA intestinal permeation as a measure of damage. Initially disposition studies after sc administration of the three NSAIDs were carried out. From these studies it was found that constant-rate iv infusions were necessary to maintain plasma concentrations of diclofenac and (S+)-ibuprofen. Administration of piroxicam by sc bolus gave relatively constant plasma concentrations, thus iv infusions were not necessary to obtain concentration-response data for this drug. Relative potency was found by comparing the concentration-response profiles of the three NSAIDs and the rank order of potency obtained was: diclofenac > piroxicam > (S+)-ibuprofen. 2. The effect of mode of administration upon intestinal damage was also investigated using diclofenac. Intestinal permeability was measured in rats given diclofenac either by sc bolus or iv infusion and dose-response data compared. It was found that for the same dose, administration by sc bolus gave a higher degree of damage than by iv infusion.
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Affiliation(s)
- J Ford
- Pharmacy Department, University of Manchester, UK
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Lee MJ, Lee MH, Shim CK. Inverse targeting of drugs to reticuloendothelial system-rich organs by lipid microemulsion emulsified with poloxamer 338. Int J Pharm 1995. [DOI: 10.1016/0378-5173(94)00193-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Stevens AJ, Martin SW, Brennan BS, Rowland M, Houston JB. Experimental determination of a drug targeting index for S(+)ibuprofen using the rat air pouch model of inflammation. J Drug Target 1994; 2:333-9. [PMID: 7858958 DOI: 10.3109/10611869409015914] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
We have used the rat air pouch model of inflammation and S(+)ibuprofen as an experimental model system to enable the quantitative assessment of the pharmacokinetic determinants of site specific drug delivery. S(+)ibuprofen (50 & 1mg/kg) was administered directly into six day old air pouches immediately following the injection of the irritant carrageenan. Serial exudate and plasma samples were collected and analysed for ibuprofen by HPLC. The procedure was repeated following administration of S(+)ibuprofen (20 & 5mg/kg) intravenously. The parameters describing events in the air pouch and plasma indicated linear kinetics over the doses employed. The dose normalised AUCs were then used to formulate a quantitative measure of benefit for S(+)ibuprofen delivered directly to the air pouch. A Drug Targeting Index (DTI) was calculated from the ratio of AUC in the air pouch and plasma following direct intrapouch administration divided by the same ratio following intravenous administration and gave a value of 130. This pharmacokinetic measure of benefit represents the maximum advantage afforded by the site specific delivery of S(+)ibuprofen as the whole of the administered dose is delivered directly to the site of action.
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Affiliation(s)
- A J Stevens
- Department of Pharmacy, University of Manchester, U.K
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High-performance liquid chromatography of alkaloids. Chem Nat Compd 1991. [DOI: 10.1007/bf00630347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Rustum AM. Measurement of ibuprofen in human whole blood by reversed-phase ion-paired high-performance liquid chromatography using a pH-stable polymeric column. JOURNAL OF CHROMATOGRAPHY 1990; 526:246-53. [PMID: 2341540 DOI: 10.1016/s0378-4347(00)82506-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- A M Rustum
- Department of Environmental Fate and Metabolism, Hazleton Laboratories America, Inc., Madison, WI 53704
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Satterwhite JH, Boudinot FD. High-performance liquid chromatographic determination of ibuprofen in rat and human plasma. JOURNAL OF CHROMATOGRAPHY 1989; 497:330-5. [PMID: 2625471 DOI: 10.1016/0378-4347(89)80038-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- J H Satterwhite
- Department of Pharmaceutics, College of Pharmacy, University of Georgia, Athens 30602
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Geisslinger G, Dietzel K, Loew D, Schuster O, Rau G, Lachmann G, Brune K. High-performance liquid chromatographic determination of ibuprofen, its metabolites and enantiomers in biological fluids. JOURNAL OF CHROMATOGRAPHY 1989; 491:139-49. [PMID: 2793968 DOI: 10.1016/s0378-4347(00)82827-3] [Citation(s) in RCA: 65] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
An isocratic high-performance liquid chromatographic method to determine racemic ibuprofen (assay I) and its major metabolites (assay II) in biological fluids (plasma, urine, bile) using a conventional reversed-phase column is described. A third assay using beta-cyclodextrin as stationary phase (Cyclobond I) for the separation of the ibuprofen enantiomers is also described. A wavelength of 220 nm was used to monitor the substances. The sensitivity of the method was 0.1 microgram/ml for all three assays. The method was demonstrated to be suitable for stereoselective pharmacokinetic studies of ibuprofen in humans and animals.
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Affiliation(s)
- G Geisslinger
- Department of Pharmacology and Toxicology, University of Erlangen-Nürnberg, F.R.G
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de Jong EG, Kiffers J, Maes RA. The determination of non-steroidal anti-inflammatory drugs by GC-MS-MS in equine urine. J Pharm Biomed Anal 1989; 7:1617-22. [PMID: 2490551 DOI: 10.1016/0731-7085(89)80173-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Results are given for a more sensitive screening procedure for non-steroidal anti-inflammatory drugs using GC-MS-MS. By monitoring a selected characteristic reaction for each drug very low detection limits are reached even in a difficult biological matrix such as equine urine. Detection down to 5 ng ml-1 for ibuprofen, ibufenac, alclofenac, fenoprofen, ketoprofen, naproxen and diclofenac is possible in contrast to the 0.5 microgram ml-1 limit for normal GC-MS detection. Examples are given of real positive cases for diclofenac and ibuprofen.
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Affiliation(s)
- E G de Jong
- Netherlands Institute for Drugs and Doping Research, Utrecht
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Chai BL, Minkler PE, Hoppel CL. Determination of ibuprofen and its major metabolites in human urine by high-performance liquid chromatography. JOURNAL OF CHROMATOGRAPHY 1988; 430:93-101. [PMID: 3215965 DOI: 10.1016/s0378-4347(00)83137-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A sensitive and selective high-performance liquid chromatographic assay for free and total ibuprofen and its major metabolites in human urine is described. Urine is acidified, drug and metabolites are extracted into hexane-propanol, back-extracted into sodium bicarbonate, neutralized and chromatographed. Ibufenac (4-isobutylphenylacetic acid) and 2-phenylpropionic acid were employed as internal standards. The extraction efficiencies were 94-100% for all compounds. The two metabolites and their internal standard were separated using an isocratic chromatographic system, followed by an abrupt step gradient to a second eluent for separation of ibuprofen and its internal standard with a total run time of 18 min. Detection was by a fixed-wavelength detector (214 nm). Sample-to-sample and day-to-day reproducibility studies yielded coefficients of variability of less than 9% for all compounds. The sensitivity was sufficient to determine 2.5 micrograms/ml free ibuprofen in 100 microliters urine.
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Affiliation(s)
- B L Chai
- Medical Research, VA Medical Center, Cleveland, OH 44106
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Minkler PE, Hoppel CL. Determination of ibuprofen in human plasma by high-performance liquid chromatography. JOURNAL OF CHROMATOGRAPHY 1988; 428:388-94. [PMID: 3215943 DOI: 10.1016/s0378-4347(00)83933-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- P E Minkler
- Medical Research 151, Veterans Administration Medical Center, Cleveland, OH 44106
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Karnes HT, Rajasekharaiah K, Small RE, Farthing D. Automated Solid Phase Extraction and Hplc Analysis of Ibuprofen in Plasma. ACTA ACUST UNITED AC 1988. [DOI: 10.1080/01483918809349954] [Citation(s) in RCA: 5] [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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Kaluzny BD, Bannow CA. High-performance liquid chromatographic determination of pimeprofen and its metabolite ibuprofen in sheep plasma and lymph. JOURNAL OF CHROMATOGRAPHY 1987; 414:228-34. [PMID: 3571388 DOI: 10.1016/0378-4347(87)80046-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Singh NN, Jamali F, Pasutto FM, Coutts RT, Russell AS. Stereoselective gas chromatographic analysis of etodolac enantiomers in human plasma and urine. JOURNAL OF CHROMATOGRAPHY 1986; 382:331-7. [PMID: 2946709 DOI: 10.1016/s0378-4347(00)83539-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Avgerinos A, Hutt AJ. High-performance liquid chromatographic determination of ibuprofen in human plasma and urine by direct injection. JOURNAL OF CHROMATOGRAPHY 1986; 380:468-71. [PMID: 3760079 DOI: 10.1016/s0378-4347(00)83681-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Shah A, Jung D. Rapid and simple determination of the major metabolites of ibuprofen in biological fluids by high-performance liquid chromatography. JOURNAL OF CHROMATOGRAPHY 1986; 378:232-6. [PMID: 3733976 DOI: 10.1016/s0378-4347(00)80718-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Lalande M, Wilson DL, McGilveray IJ. Rapid high-performance liquid chromatographic determination of ibuprofen in human plasma. JOURNAL OF CHROMATOGRAPHY 1986; 377:410-4. [PMID: 3711236 DOI: 10.1016/s0378-4347(00)80802-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Shah A, Jung D. Improved high-performance liquid chromatographic assay of ibuprofen in plasma. JOURNAL OF CHROMATOGRAPHY 1985; 344:408-11. [PMID: 4086566 DOI: 10.1016/s0378-4347(00)82049-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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