Abstract:
:The risk assessment of di(2-ethylhexyl) phthalate (DEHP) that migrated from polyvinyl chloride (PVC) medical devices is an important issue for hospitalized patients. Many studies have been conducted to determine the level of DEHP migration. A recent report has indicated that DEHP in blood bags was hydrolyzed by esterase to mono(2-ethylhexyl) phthalate (MEHP). Therefore, a method for the simultaneous determination of DEHP and MEHP was developed. The migration of DEHP and MEHP from PVC tubing to drugs was examined. Although we detected MEHP in the drugs, we found no enzymatic activity involved in the migration process. Some reports have indicated that hydrolysis may have occurred during sterilization by autoclaving. However, we did not perform any heat treatment. It is speculated that the MEHP migrated directly from the PVC tubing. The simultaneous determination of DEHP and MEHP is required for risk assessment, as MEHP may be even more toxic than the parent compound.
journal_name
J Pharm Biomed Analjournal_title
Journal of pharmaceutical and biomedical analysisauthors
Ito R,Seshimo F,Miura N,Kawaguchi M,Saito K,Nakazawa Hdoi
10.1016/j.jpba.2005.06.016subject
Has Abstractpub_date
2005-10-04 00:00:00pages
1036-41issue
5eissn
0731-7085issn
1873-264Xpii
S0731-7085(05)00415-2journal_volume
39pub_type
杂志文章abstract::A combined method of immunoaffinity extraction with high-performance liquid chromatography has been developed for the enantioselective determination of bufuralol and its metabolites in human plasma. The antibodies having high affinity toward the asymmetric center at the C-1 position of bufuralol and its 1'-oxidized me...
journal_title:Journal of pharmaceutical and biomedical analysis
pub_type: 杂志文章
doi:10.1016/s0731-7085(97)00147-7
更新日期:1998-05-01 00:00:00
abstract::A rapid analytical procedure for routine identification and quantification of amoxicillin in premixes by high performance liquid chromatography was developed and tested. The ground premix samples were extracted for 10 min using 100ml extraction mixture water-methanol (800:200, v/v). The extract was analyzed by reverse...
journal_title:Journal of pharmaceutical and biomedical analysis
pub_type: 杂志文章
doi:10.1016/j.jpba.2004.10.010
更新日期:2005-02-23 00:00:00
abstract::Adulterations with synthetic drugs are common problems with herbal medicine and this can potentially cause serious adverse effects. It is therefore important to determine the presence of synthetic drugs in herbal medicine to ensure patients' safety. The objective of this study was to develop sensitive and specific met...
journal_title:Journal of pharmaceutical and biomedical analysis
pub_type: 杂志文章
doi:10.1016/s0731-7085(02)00637-4
更新日期:2003-02-26 00:00:00
abstract::The methyl- and ethylsulphoxide diastereoisomers (V and VI) of the corticosteroid tipredane (INN, I) have been shown to undergo further stereoselective S-oxidation to yield diastereoisomeric disulphoxides (II). Interactive computer optimisation software was employed to develop semi-preparative chromatography condition...
journal_title:Journal of pharmaceutical and biomedical analysis
pub_type: 杂志文章
doi:10.1016/s0731-7085(96)01860-2
更新日期:1996-12-01 00:00:00
abstract::Herein we describe for the first time a practical analytical method for determining the enantio-purity of L-α-glycerophosphocholine (L-α-GPC) by chiral derivatization. The use of a suitable chiral boronic acid allowed the formation of a mixture of two diastereomeric boronate esters whose ratio, carefully analyzed by 1...
journal_title:Journal of pharmaceutical and biomedical analysis
pub_type: 杂志文章
doi:10.1016/j.jpba.2020.113152
更新日期:2020-05-10 00:00:00
abstract::Growth media for mammalian cell culture are very complex mixtures of several dozens of ingredients, and thus the preparation of qualified media is critical to viable cell density and final product titers. For liquid media prepared from powdered ingredients, sterile filtration is required prior to use to safeguard the ...
journal_title:Journal of pharmaceutical and biomedical analysis
pub_type: 杂志文章
doi:10.1016/j.jpba.2015.11.014
更新日期:2016-02-05 00:00:00
abstract::In this study, a improved high performance liquid chromatography-diode array detector (HPLC-DAD) method for simultaneous quantification of twelve major components belonging to three chemical types was developed and validated, and was applied to quantitatively compare the quality of Radix Paeoniae Alba (RPA) sulfur-fum...
journal_title:Journal of pharmaceutical and biomedical analysis
pub_type: 杂志文章
doi:10.1016/j.jpba.2014.06.027
更新日期:2014-09-01 00:00:00
abstract::The photochemistry of 4-aminobenzoic acid has been investigated using two validated reversed-phase HPLC methods. Up to nine photoproducts have been detected, with chromatographic evidence for the formation of 4,4'-azobenzenedicarboxylic acid and 4,4'-hydrazobenzenedicarboxylic acid. The synthesis and analytical charac...
journal_title:Journal of pharmaceutical and biomedical analysis
pub_type: 杂志文章
doi:10.1016/0731-7085(96)01808-0
更新日期:1996-08-01 00:00:00
abstract::A simple and sensitive liquid chromatographic method with electrochemical (EC) detection is described for the quantitative determination of amoxycillin and clavulanic acid in pharmaceutical dosage forms. Sample components were separated by a reversed phase C18 column, using a mixture of methanol-phosphate buffer (pH 3...
journal_title:Journal of pharmaceutical and biomedical analysis
pub_type: 杂志文章
doi:10.1016/s0731-7085(00)00507-0
更新日期:2001-05-01 00:00:00
abstract::A sensitive high performance liquid chromatographic (HPLC) assay has been developed and validated for the quantitation of the novel anticancer agent topotecan and topotecan as its lactone plus carboxylate forms in rat and dog plasma. Linear responses in analyte standard peak areas were observed over the concentration ...
journal_title:Journal of pharmaceutical and biomedical analysis
pub_type: 杂志文章
doi:10.1016/0731-7085(96)01838-9
更新日期:1996-11-01 00:00:00
abstract::A porous zwitterionic monolithic column was prepared to rapidly and efficiently separate lysozyme from egg white. The monolith was synthesized in a stainless steel HPLC column (5 cm × 4.6 mm i.d.) by in-situ thermal initiated co-polymerization of N,N-dimethyl-N-methacryloxyethyl-N-(3-sulfopropyl) ammonium betaine (MSA...
journal_title:Journal of pharmaceutical and biomedical analysis
pub_type: 杂志文章
doi:10.1016/j.jpba.2019.07.009
更新日期:2019-10-25 00:00:00
abstract::An analytical method was developed for the determination of the enantiomers of felodipine, a dihydropyridine-type calcium antagonist, in human blood plasma. Felodipine was extracted from plasma using toluene as extraction solvent. The enantiomers were separated on a cellulose tris(4-methyl benzoate) stationary phase (...
journal_title:Journal of pharmaceutical and biomedical analysis
pub_type: 杂志文章
doi:10.1016/s0731-7085(01)00582-9
更新日期:2002-01-15 00:00:00
abstract::The development and validation of an HPLC method for the quantification of the decapeptide Cetrorelix (acetyl-D-2-naphthylalanyl-D-4-chlorphenylalanyl-D-3-pyridylalanyl-seryl-tyrosyl-D-citrullyl-leucyl-arginyl-prolyl-d-alaninamide), a potent antagonist of the luteinising hormone-releasing hormone in liposome dispersio...
journal_title:Journal of pharmaceutical and biomedical analysis
pub_type: 杂志文章
doi:10.1016/j.jpba.2003.11.010
更新日期:2004-03-10 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::Glycoconjugate vaccines based on the Vi capsular polysaccharide directed against Salmonella enterica serovar Typhi are licensed or in development against typhoid fever, an important cause of morbidity and mortality in developing countries. Quantification of free polysaccharide in conjugate vaccines is an important qua...
journal_title:Journal of pharmaceutical and biomedical analysis
pub_type: 杂志文章
doi:10.1016/j.jpba.2017.02.042
更新日期:2017-05-30 00:00:00
abstract::Cornus officinalis-Rehmannia glutinosa herb couple is widely used herb medicine in clinical practice to treat chronic kidney disease (CKD). However, the in vivo integrated metabolism of its main bioactive components in CKD rats remains unknown. In this study, UPLC-Q-TOF/MS technique combined with Metabolynx™ software,...
journal_title:Journal of pharmaceutical and biomedical analysis
pub_type: 杂志文章
doi:10.1016/j.jpba.2018.08.051
更新日期:2018-11-30 00:00:00
abstract::The elevated cardiovascular morbidity and mortality in chronic kidney disease (CKD) is linked with endothelial dysfunction secondary to the pro-inflammatory and pro-oxidative state typical of this pathology. In consideration of the well-known pleiotropic effect of statins, we investigated the effect of cholesterol low...
journal_title:Journal of pharmaceutical and biomedical analysis
pub_type: 杂志文章
doi:10.1016/j.jpba.2016.07.025
更新日期:2016-09-10 00:00:00
abstract::A gas-chromatographic assay method was developed and validated for determination of busulfan in human plasma for test dose therapeutic drug monitoring. Busulfan and the internal standard (1,6-bis-(methanesulfonyloxy)hexane) were extracted from plasma samples and derivatized with 2,3,5,6-tetrafluorothiophenol prior to ...
journal_title:Journal of pharmaceutical and biomedical analysis
pub_type: 杂志文章
doi:10.1016/0731-7085(95)01342-i
更新日期:1995-08-01 00:00:00
abstract::A selective and sensitive isocratic high-performance liquid chromatographic (HPLC) method was developed for the quantitative analysis of low concentrations of fluoxetine (FLX) in human plasma, with ultra-violet detection at 226 nm. A reversed-phase column, LiChrospher 60 RP-Select B (125 x 3 mm i.d., 5 microm) (Merck)...
journal_title:Journal of pharmaceutical and biomedical analysis
pub_type: 杂志文章
doi:10.1016/s0731-7085(00)00367-8
更新日期:2000-11-01 00:00:00
abstract::The star plot (SP) is a method of displaying multivariate data. It can be used to display data with more than two variables. Combined with principal component analysis (PCA), more than two PCs can be displayed in one plane. Different variants of this method are applied to an atomic absorption spectrometry (AAS) data s...
journal_title:Journal of pharmaceutical and biomedical analysis
pub_type: 杂志文章
doi:10.1016/s0731-7085(98)00066-1
更新日期:1998-09-01 00:00:00
abstract::Indole-3-carbinol is a natural glucosinolate known for prevention of human breast, prostate and other types of cancer and it started to be used in commercial preparations, as food supplements. However no analytical method has been proposed for quality control of nutraceuticals with this substance yet. In this paper a ...
journal_title:Journal of pharmaceutical and biomedical analysis
pub_type: 杂志文章
doi:10.1016/j.jpba.2015.12.039
更新日期:2016-02-20 00:00:00
abstract::Reliable methods for the analysis of silicon are of great importance, because it seems that the silicate anion can reduce aluminum bioavailability in patients undergoing dialysis. Thus, a simple and sensitive spectrophotometric method is described for the determination of silicate traces in dialysis solutions. The met...
journal_title:Journal of pharmaceutical and biomedical analysis
pub_type: 杂志文章
doi:10.1016/s0731-7085(99)00054-0
更新日期:1999-06-01 00:00:00
abstract::The angiotensin converting enzyme inhibitor, enalaprilat can exist in solution as cis and trans conformers which interconvert around the amide bond at room temperature. A HPLC with UV detection was performed to study the influence of various chromatographic operational conditions on both rotamers separation and elutio...
journal_title:Journal of pharmaceutical and biomedical analysis
pub_type: 杂志文章
doi:10.1016/s0731-7085(02)00661-1
更新日期:2003-03-26 00:00:00
abstract::Drugs may be metabolised to reactive electrophilic species that spontaneously react with proteins. The presence of such drug-protein adducts has been associated with drug toxicity. In this study, the reactivity of the major metabolite of naproxen--the 1-beta-O-glucuronide (Nap-GlcU)--was compared to the corresponding ...
journal_title:Journal of pharmaceutical and biomedical analysis
pub_type: 杂志文章
doi:10.1016/s0731-7085(02)00026-2
更新日期:2002-06-20 00:00:00
abstract::A method was validated and optimized to determine tobramycin (TOB) and its related substances. TOB is an aminoglycoside antibiotic which lacks a strong UV absorbing chromophore or fluorophore. Due to the physicochemical properties of TOB, capillary electrophoresis (CE) in combination with Capacitively Coupled Contactl...
journal_title:Journal of pharmaceutical and biomedical analysis
pub_type: 杂志文章
doi:10.1016/j.jpba.2011.09.032
更新日期:2012-01-25 00:00:00
abstract::In traditional Chinese medicine practice, crude herbs are often subjected to traditional processing (Paozhi in Chinese) for a special medicinal purpose. Bran-frying is one of processing methods for Paeoniae Radix Alba (PRA). Previous studies found that paeoniflorin and paeoniflorin sulfonate, a principle bioactive com...
journal_title:Journal of pharmaceutical and biomedical analysis
pub_type: 杂志文章
doi:10.1016/j.jpba.2018.07.003
更新日期:2018-09-10 00:00:00
abstract::Natural and synthetic opioids have efficient analgesic activity but can also be addictive. Thus, the determination of opioids and their metabolites in biological specimens is of interest in clinical and forensic toxicology laboratories. The analysis of drugs in hair provides valuable information on previous chronic dr...
journal_title:Journal of pharmaceutical and biomedical analysis
pub_type: 杂志文章
doi:10.1016/j.jpba.2013.10.041
更新日期:2014-02-01 00:00:00
abstract::This study demonstrates the use of hydrophilic interaction liquid chromatography with a nano quantity analyte detector for the retention, separation and detection of magnesium from magnesium stearate in tablet formulations for a drug product formulation blend containing a hydrochloride salt of a weakly basic compound ...
journal_title:Journal of pharmaceutical and biomedical analysis
pub_type: 杂志文章
doi:10.1016/j.jpba.2013.02.003
更新日期:2013-05-05 00:00:00
abstract::It has always been challenging to use spectroscopic methods to analyze salt disproportionation in a multi-component tablet matrix due to the spectral interference generated by the various excipients. Although combining Raman spectroscopy and chemometrics can be a powerful approach to study the extent of salt dispropor...
journal_title:Journal of pharmaceutical and biomedical analysis
pub_type: 杂志文章
doi:10.1016/j.jpba.2015.10.024
更新日期:2016-01-25 00:00:00
abstract::In this work, dissociation constants values of seven beta lactam antibiotics in water and acetonitrile-water mixtures using spectrophotometric and reversed phase liquid chromatography methods were determined. The dissociation constant values of these compounds were calculated by NLREG and STAR programs. Aqueous pK(a) ...
journal_title:Journal of pharmaceutical and biomedical analysis
pub_type: 杂志文章
doi:10.1016/j.jpba.2012.06.023
更新日期:2012-12-01 00:00:00