Abstract：
:A solid phase fluorescence spectroscopic batch procedure for (acetyl) salicylic acid in drug formulations have been developed. The procedure is based on the sorption of salicylic acid (SA) on Sephadex DEAE A-25 anion exchanger gel (100 mg) by equilibration from an aqueous solution (10 or 25 ml) for 5 min; the equilibrated gel is transferred into an 1 mm quartz cell and the native fluorescence of SA sorbed on it is directly measured (lambda(ex)=297 nm; lambda(em)=405 nm). Good linearity was found in the 10-200 and 5-100 microg l(-1) ranges (for 10 and 25 ml sample volume, respectively) with R.S.D. (%) of 2.8 and 1.1. The procedure was successfully applied to the determination of acetyl salicylic acid (ASA) in drug formulations after alkaline hydrolysis to yield SA.
journal_name
J Pharm Biomed Analjournal_title
Journal of pharmaceutical and biomedical analysisauthors
Ortega Algar S,Ramos Martos N,Molina Díaz Adoi
10.1016/s0731-7085(02)00719-7subject
Has Abstractpub_date
2003-03-10 00:00:00pages
439-46issue
3eissn
0731-7085issn
1873-264Xpii
S0731708502007197journal_volume
31pub_type
杂志文章abstract：:TopCount, a microplate scintillation counter (MSC), has been recently employed as an off-line liquid radiochromatographic detector for radioactive metabolite profile analysis. The present study was undertaken to validate TopCount for metabolite profiling with respect to sensitivity, accuracy, precision and radioactivi...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
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abstract：:A near-infrared reflection spectroscopy (NIRS) method was developed to determine the total content of kavapyrones, kavain and water in dry extracts of Piper methysticum Forst. (kava kava, Piperaceae). Based on the recorded spectra and the reference data, performed by HPLC and Karl Fischer titration, a chemometrical an...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
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abstract：:Elderly people represent about the 15% of the total world population and often include a polymedicated age group with an average consumption of 5-10 pills per day. The main pharmaceuticals consumed are antianalgesics, antidiabetics, anti-parkinson compounds, anti-convulsants, drugs to treat constipation and drugs to t...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
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更新日期：2019-05-10 00:00:00
abstract：:A refined toxic fraction, Fr-2, from the ethanol extract of Aster tataricus roots was obtained by a toxic tracing isolation. The hepatotoxic effects of Fr-2 were proved by the level elevation of alanine aminotransferase (ALT), aspartate aminotransferase (AST) and alkaline phosphatase (ALP) in mice serum and further co...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2012.04.034
更新日期：2012-08-01 00:00:00
abstract：:Hesperidin (hesperetin-7-O-rutinoside), a flavonoid affecting vascular function, is abundant in citrus fruits and derived products such as juices. After oral administration, hesperidin is hydrolyzed by the colonic microbiota producing hesperetin-7-O-glucoside, the glucoside group is further cleaved and the resulting h...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2011.08.031
更新日期：2012-01-05 00:00:00
abstract：:The study of glycoproteins is a rapidly growing field, which is not surprising considering that approximately 70% of human proteins are glycosylated and that numerous biological functions are associated to the glycosylation. In this work, our interest focused on the heterodimeric human Chorionic Gonadotropin (hCG) gly...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2019.06.014
更新日期：2019-09-10 00:00:00
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journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2018.01.052
更新日期：2018-04-15 00:00:00
abstract：:A RP-HPLC method was developed and validated for the degradation kinetic study of 2-(2-hydroxypropanamido) benzoic acid (HPABA), a promising anti-inflammatory drug, which would provide a basis for further studies on HPABA. The effects of pH, temperature, buffer concentration and ionic strength on the degradation kinet...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2015.04.012
更新日期：2015-08-10 00:00:00
abstract：:A metabonomic strategy based on UHPLC-MS with principal component analysis was developed to investigate the intervention effects of Epimedium koreanum on metabolism characters of 'Kidney-Yang Deficiency syndrome' rats. The rats were injected intraperitoneally hydrocortisone once daily for 15 days to simulate 'Kidney-Y...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2012.12.022
更新日期：2013-03-25 00:00:00
abstract：:Therapeutic drug monitoring (TDM) of mycophenolic acid (MPA) following administration of mycophenolate mofetil (MMF) or the enteric-coated sodium salt of MPA formulations, seems beneficial because of the large intra- and inter-individual variability in MPA pharmacokinetics. MPA is an active component from these oral f...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2007.11.018
更新日期：2008-02-13 00:00:00
abstract：:A simple, rapid, reliable and highly sensitive on-line two-dimensional reversed-phase liquid chromatography-tandem mass spectrometric (2D-LC/MS/MS) method to determine antiretroviral drugs viz., abacavir (ABC), nevirapine (NVP) and indinavir (IDV) in rat serum and urine was developed and validated. The analytes were e...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2009.07.005
更新日期：2009-12-05 00:00:00
abstract：:We describe a simple method for evaluating the inhibition of collagen IV degradation by cathepsin B with a surface plasmon resonance (SPR) biosensor. The change in the SPR signal decreased with an increase in the concentration of cathepsin B inhibitors. The order of the inhibitory constant (Ki) obtained by the SPR met...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2017.06.026
更新日期：2017-10-25 00:00:00
abstract：:In this paper, we review recent research articles on liquid-phase microextraction of drug substances from biological fluids, such as plasma, serum, urine, and saliva. We focus on papers where liquid-phase microextraction is combined with liquid chromatography coupled with mass spectrometry (LC-MS), published in the pe...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章,评审
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更新日期：2020-09-10 00:00:00
abstract：:Health Canada reported recently that medical devices containing di(2-ethylhexyl) phthalate (DEHP) should not be used in the clinical treatment of infants, young boys, pregnant women, and nursing mothers. The risk assessment of DEHP released from PVC medical devices is an important issue for hospitalized patients. In t...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/s0731-7085(03)00019-0
更新日期：2003-04-10 00:00:00
abstract：:A reversed phase high-performance liquid chromatographic method with detection at 220 nm was developed and validated for the determination of piperacillin, I, and tazobactam, II, in Tazocin injectable powder. Acetaminophen was used as internal standard. A Hypersil BDS RP-C(18) column (250 x 4.6 mm), 5 microm particle ...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/s0731-7085(02)00129-2
更新日期：2002-07-31 00:00:00
abstract：:A method for routine base composition determination of phosphorothioate oligonucleotides containing as many as 21 nucleobases has been developed and systematically evaluated in terms of factors contributing to assay precision and accuracy. Phosphorothioate internucleotide linkages were oxidized with a mixture of tetra...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/0731-7085(94)00099-9
更新日期：1994-11-01 00:00:00
abstract：:Over 100 chromatographic procedures for the separation of beta-blocker enantiomers are reviewed including a large number for the analysis of biological samples. All the principal chiral chromatographic procedures have found use, namely Chiral Mobile Phase Additives (CMPA), Chiral Derivatization Agents (CDA) and Chiral...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章,评审
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更新日期：1992-06-01 00:00:00
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journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
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journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
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更新日期：1988-01-01 00:00:00
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journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章,meta分析,评审
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abstract：:The tridecapeptide afamelanotide (Scenesse®) is a congener of α-melanocyte stimulating hormone (α-MSH). Upon binding to the melanocortin 1 receptor (MC1R) on the surface of pigment cells of the skin, the melanocytes, α-MSH or afamelanotide trigger the synthesis of cAMP, which stimulates the synthesis of melanin and th...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2012.11.040
更新日期：2013-03-05 00:00:00
abstract：:A direct enantioselective high-performance liquid chromatography was employed successfully for determination of the enantiomeric purity of levamisole. The elaborated method used S-naphthylethylcarbamoylated beta-cyclodextrin stationary phase in reversed-phase mode. The optimized mobile phase composition was acetonitri...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/s0731-7085(00)00513-6
更新日期：2001-06-01 00:00:00
abstract：:The present manuscript deals with a simple and sensitive flow-injection method for the chemiluminescent determination of thiazides. The method is based on the on-line photodegradation and chemiluminescent determination of the resulting photo-fragments. The on-line photodegradation is performed in basic medium by using...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2004.08.020
更新日期：2004-11-19 00:00:00
abstract：:In this paper the development and validation of a method for the analysis of THC-COOH, THC, THC-OH, CBD and CBN in their total form in urine by LC-MS/MS is presented. Tandem hydrolysis, i.e. enzymatic and basic, has been found optimal for the simultaneous analysis of the selected analytes in urine: basic hydrolysis is...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2013.12.035
更新日期：2014-03-01 00:00:00
abstract：:CPZEN-45 is a new drug candidate being considered for the treatment of tuberculosis (TB). The aim of this study was to develop and validate a reverse-phase high-performance liquid chromatographic (HPLC) method suitable to determine CPZEN-45 concentrations in biological samples. CPZEN-45 was extracted from biological f...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2013.09.014
更新日期：2014-01-01 00:00:00
abstract：:In this paper, a new and efficient method for synthesis of phloroglucinol with an overall yield of 60% was described. As well, the phloroglucinol association on an immobilized human serum albumin (HSA) column was analyzed in biochromatography by the determination of its Langmuir distribution isotherms. The role of the...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/s0731-7085(03)00220-6
更新日期：2003-07-14 00:00:00
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journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/s0731-7085(01)00625-2
更新日期：2002-04-15 00:00:00
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journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2005.06.036
更新日期：2006-02-13 00:00:00
abstract：:As a vital therapeutic agent for Parkinson's disease, dosage control of levodopa has always been a major obstacle in ensuring efficacy and curbing side effects. Simple and fast electrochemical detection methods are the main force in this field. Here, we presented a differential dual-strip method based on the coulometr...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2020.113498
更新日期：2020-10-25 00:00:00
abstract：:Drugs of long-term use may cause the accumulation of chemical compounds in human body. Therefore, the evaluation and structure characterization of synthesis and degradation impurities is substantial to guarantee drug safety and successful pharmaceutical therapy. The present work evaluated the anticoagulant rivaroxaban...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2016.01.053
更新日期：2016-05-10 00:00:00
