Abstract：
:Skin permeability of organic compounds depends on their lipophilicity but can also be affected by compounds interactions with specific skin components. A good chromatographic model of percutaneous penetration determined solely by lipophilicity is provided by the immobilized artificial membrane (IAM) columns. To complete the model a new high-performance liquid chromatographic (HPLC) stationary phase was prepared by physical immobilization of keratin on silica support. The keratin immobilized on silica has properties typical for the reversed-phase materials but it retains specifically acidic solutes. The keratin column can be used to conveniently compare keratolytic properties of xenobiotics. It was demonstrated that retention parameters determined on a keratin column can be combined with the retention parameters determined on the IAM column to predict differences in skin permeability within a class of drugs. It has been postulated that HPLC can model skin permeation thus reducing research time and costs as well as the use of laboratory animals.
journal_name
J Pharm Biomed Analjournal_title
Journal of pharmaceutical and biomedical analysisauthors
Turowski M,Kaliszan Rdoi
10.1016/s0731-7085(96)02009-2subject
Has Abstractpub_date
1997-06-01 00:00:00pages
1325-33issue
9-10eissn
0731-7085issn
1873-264Xpii
S0731-7085(96)02009-2journal_volume
15pub_type
杂志文章abstract：:A new tadalafil analogue was identified along with homotadalafil during routine screening of an adulterated dietary supplement using HPLC-DAD. The UV spectrum of this analogue was almost identical with that of tadalafil. This compound was isolated from the supplement by using semi-preparative HPLC and its structure wa...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2015.07.023
更新日期：2015-11-10 00:00:00
abstract：:A second order derivative spectrophotometric method for the determination of bifonazole in the presence of methyl- and propyl p-hydroxybenzoate as preservatives has been developed. The determination was performed in a 0.1 M HCl solution at 241.5 nm, a wavelength corresponding to the intersection of the second order de...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/s0731-7085(03)00228-0
更新日期：2003-09-15 00:00:00
abstract：:A simple high-performance liquid chromatographic method was developed for the determination of omeprazole in human plasma. Omeprazole and the internal standard, chloramphenicol, were extracted from alkalinized plasma samples using dichloromethane. The mobile phase was 0.05 M Na2HPO4-ACN (65:35, v/v) adjusted to pH 6.5...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/s0731-7085(00)00473-8
更新日期：2001-02-01 00:00:00
abstract：:Several pharmacopoeias recommend the membrane filtration method for the sterility test of ophthalmic ointments. Isopropyl myristate, a fatty acid ester that exhibits high toxicity mainly against Gram-negative microorganisms, is indicated as a solvent for ointments. In this study, six fatty acid esters (diethyl adipate...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2006.05.018
更新日期：2006-11-16 00:00:00
abstract：:A novel method was developed for the determination of aucubin in rat serum by ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) with supramolecular solvent (SUPRAS)-based dispersive liquid-liquid microextraction (DLLME). The SUPRAS was prepared with pentanol as extraction solvent and tetrah...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2020.113301
更新日期：2020-07-15 00:00:00
abstract：:An automated electronic tongue consisting of an array of potentiometric sensors and an artificial neural network (ANN) has been developed to resolve mixtures of anionic surfactants. The sensor array was formed by five different flow-through sensors for anionic surfactants, based on poly(vinyl chloride) membranes havin...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2007.09.013
更新日期：2008-01-22 00:00:00
abstract：:The concentration of TiO(2) in a cream formulation has been non-destructively measured using Raman spectroscopy without further sample pretreatments. The distribution of TiO(2) particles in a highly viscous cream may not be homogeneous on a microscopic scale and local aggregation of the particles is possible; therefor...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2010.05.008
更新日期：2010-11-02 00:00:00
abstract：:Biotin labelled with a cymantrene moiety (cyclopentadienyl manganese tricarbonyl complex) is described for the first time. Because this metallo-biotin retains full recognition for the specific glycoprotein avidin (or streptavidin), the labelled streptavidin-biotin system is proposed for use in a solid-phase competitio...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/0731-7085(91)80031-4
更新日期：1991-01-01 00:00:00
abstract：:A sensitive and specific LC-MS assay for DT-13 in rat plasma was developed. DT-13 is an active steroidal saponin present in Liriopes Radix and is developed as an anti-tumor drug candidate. The samples were extracted by acetonitrile-mediated plasma protein precipitation. The chromatographic separation was carried out u...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2011.07.003
更新日期：2011-11-01 00:00:00
abstract：:Cocaine is one of the most worldwide used illicit drugs. We report a magnetic particles-based enzyme-linked immunoassay (mpEIA) method for the rapid and sensitive determination of cocaine (COC) in saliva, urine and serum samples. Under optimized conditions, the limits of detections were 0.09ngmL(-1) (urine), 0.15ngmL(...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2016.03.004
更新日期：2016-06-05 00:00:00
abstract：:As high-performance liquid chromatography (HPLC), the premier analytical technique in the pharmaceutical industry, becomes more ubiquitous, methods are more frequently being transferred from one laboratory to another. This review will discuss sources of failures to reproduce HPLC procedures, ranging from sample handli...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章,评审
doi：10.1016/0731-7085(89)80002-0
更新日期：1989-01-01 00:00:00
abstract：:Fingolimod (Gilenya; FTY720), has been recently approved for the treatment of multiple sclerosis in Europe and in the USA. In the present study, we have developed and validated a rapid and sensitive liquid chromatography-tandem mass spectrometry (LC-MS/MS) method to simultaneously quantify FTY720 and FTY720-P in human...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2011.09.021
更新日期：2012-01-25 00:00:00
abstract：:A simple reversed-phase high-performance liquid chromatography (HPLC) method was developed for the simultaneous estimation of the antiepileptic drugs (AEDs) lamotrigine (LTG), phenobarbitone (PB), carbamazepine (CBZ) and phenytoin (PHT) in human serum. The procedure involves extraction of the AEDs by mixing 200 microl...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2005.02.045
更新日期：2005-09-01 00:00:00
abstract：:A PVC membrane electrode, without inner reference solution, based on an ion association extraction system responding to methadone (MD) is described. It incorporates a methadone-tetrakis(4-chlorophenyl)borate ion-pair complex in 2-nitrophenyloctyl ether. The prepared electrode exhibits a near Nernstian response (59.5 m...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/s0731-7085(02)00694-5
更新日期：2003-03-10 00:00:00
abstract：:A simple reversed-phase high-performance liquid chromatography method was developed for the determination of s-carboxymethyl-l-cysteine in syrup preparations. The experiments were performed without specific sample pre-treatment. The LC conditions used were acetonitrile-10 mM sodium dihydrogenphosphate buffer, pH 2.0 (...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/s0731-7085(00)00479-9
更新日期：2001-04-01 00:00:00
abstract：:Prostate cancer (CaP) is a leading cause of cancer deaths in men worldwide. The alarming statistics, the currently applied biomarkers are still not enough specific and selective. In addition, pathogenesis of CaP development is not totally understood. Therefore, in the present work, metabolomics study related to urinar...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2014.12.026
更新日期：2015-01-01 00:00:00
abstract：:A method for the determination of 4-aminophenol as an impurity in paracetamol (N-(4-hydroxyphenyl)-acetamide) by proton nuclear magnetic resonance ((1)H-NMR) spectroscopy has been developed. The (13)C-satellite from the protons in the ortho position from the hydroxyl group in paracetamol was used as an internal standa...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/s0731-7085(02)00086-9
更新日期：2002-07-01 00:00:00
abstract：:A sensitive enantioselective liquid chromatography-mass spectrometry (LC-MS) assay using a manual solid-phase extraction (SPE) procedure, a non-deuterated internal standard and an ion trap LC-MS was developed to measure (R)- and (S)-albuterol in plasma. Sample extraction from plasma was achieved by a manual SPE extrac...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/s0731-7085(02)00734-3
更新日期：2003-04-10 00:00:00
abstract：:Ligustilide (LIG) is the main active ingredient of Angelica sinensis (Oliv.) Diels and has a neuroprotective effect against ischemic stroke. However, owing to its multi-conjugated unstable structure, the compound has poor drug-forming properties. Therefore, we synthesized highly stable colorless needle crystals (known...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2020.113140
更新日期：2020-04-15 00:00:00
abstract：:Antiphospholipid syndrome (APS) is a rheumatic inflammatory chronic autoimmune disease inducing hypercoagulable state associated with vascular thrombosis and pregnancy loss in women. Cardiac, cerebral and vascular strokes in these patients are responsible for reduction in life expectancy. Timely diagnosis and accurate...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2016.11.002
更新日期：2017-01-30 00:00:00
abstract：:Prolonged biliary obstruction and infection cause retention of biliary constituents in liver followed by hepatocyte dysfunction. Decompression therapy is important for both management and prognostic reasons and restores hepatocyte function. Quantitative metabolite profiling of bile using NMR spectroscopy at the time o...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2011.04.010
更新日期：2011-08-25 00:00:00
abstract：:High-performance liquid chromatographic methods were developed for the separation of enantiomers of four unnatural paclitaxel precursor phenylisoserine analogs on chiral stationary phases containing macrocyclic glycopeptides and cyclofructans as chiral selectors. The effects of the mobile phase composition, the nature...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2015.06.007
更新日期：2015-10-10 00:00:00
abstract：:The contamination of commonly used supplements by unknown steroids as well as their metabolites (parent compounds) become a challenge for the analytical laboratories. Although the determination of steroids profile is not trivial because of the complex matrix and low concentration of single compound, one of the most di...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2014.11.017
更新日期：2015-03-15 00:00:00
abstract：:Creatine riboside (CR) is a novel metabolite of cancer metabolism. It is a urinary diagnostic biomarker of lung and liver cancer risk and prognosis. The level of CR is highly positive correlated in tumor and urine indicating that it is derived from human lung and liver cancers. A precise and sensitive ultra-pressure l...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2020.113596
更新日期：2020-11-30 00:00:00
abstract：:A chiral HPLC method was developed for the quantitation of R(-)- and S(+)-prilocaine in human serum. The method involves sensitive and selective detection of R(-)- and S(+)-prilocaine using normal-phase chiral HPLC on a pirkle-type naphthyl ethylamine stationary phase (Sumichiral OA-4700, 250 mm x 4 mm i.d.) at ambien...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/s0731-7085(96)01872-9
更新日期：1996-12-01 00:00:00
abstract：:Sunitinib malate, an oral multi-targeted tyrosine kinase inhibitor approved for the treatment of metastatic renal cell carcinoma, gastrointestinal stromal tumor, and well-differentiated pancreatic neuroendocrine tumors, has been identified as a potential candidate for therapeutic drug monitoring approach. Nevertheless...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2018.08.013
更新日期：2018-10-25 00:00:00
abstract：:Three extraction methods for analysis of podophyllotoxin and its derivatives from Linum species were compared. No statistical difference on the percentage of recovery were found between the methods. The "glycosidase-method" showed the best result with respect to the accuracy studies; the "acetone-method" has an advant...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2004.01.016
更新日期：2004-05-28 00:00:00
abstract：:Several methods are reported for the simultaneous determination of diazepam and pyridoxine: two graphical methods (zero-crossing and derivative quotient spectra); and two numerical methods (multiple linear regression and partial least-squares regression). The methods have been applied in the concentration ranges 1.4-4...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/0731-7085(96)01844-4
更新日期：1996-11-01 00:00:00
abstract：:Clindamycin is widely used in antimicrobial prophylaxis to prevent surgical site infections. Adequate subcutaneous free tissue concentrations should reach therapeutic levels, which have to be maintained throughout the surgical procedure for antibiotic prophylaxis to be efficient. A method was developed and validated u...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2018.02.005
更新日期：2018-05-10 00:00:00
abstract：:The novel identification method for a heat-unstable antibiotic, FC/TA-891 and its active metabolite (FCE22101) by high-performance liquid chromatography (HPLC)-atmospheric pressure chemical ionization mass spectrometry (APCI-MS) employing bromoform as an ionization acceleration solvent, was applied to eight penicillin...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/s0731-7085(02)00402-8
更新日期：2002-11-07 00:00:00
