Abstract：
:A sensitive liquid chromatography tandem mass spectrometry (LC-MS/MS) method for the determination of adenosine concentrations in mouse brain microdialysis samples was developed. High method sensitivity (LLOQ of 1.25 fmol) was achieved by on-line switching column. A C18 was employed as enrichment column and a cyano based (CN-SB) as analytical column. The method was fully validated for its sensitivity, selectivity, matrix effect and stability. It was successfully applied to measure quantitatively adenosine in brain of freely moving mice after different stimuli.
journal_name
J Pharm Biomed Analjournal_title
Journal of pharmaceutical and biomedical analysisauthors
Carrozzo MM,Troisi L,Cannazza G,Cazzato AS,Braghiroli D,Parenti C,Guiducci S,Zoli Mdoi
10.1016/j.jpba.2012.05.014subject
Has Abstractpub_date
2012-11-01 00:00:00pages
563-6eissn
0731-7085issn
1873-264Xpii
S0731-7085(12)00270-1journal_volume
70pub_type
杂志文章abstract：:A gas chromatographic procedure has been developed for the trace determination of chloroacetyl chloride (CAC) and two of its impurities: methyl chloroacetate (MCA) and chloroacetic acid (CAA). All three compounds are derivatized using piperidine in dichloroethane prior to their analysis via gas chromatography coupled ...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2017.09.026
更新日期：2018-01-30 00:00:00
abstract：:The objective of the present study was to evaluate the bioequivalence of two formulations of gliclazide in healthy human volunteers. Bioequivalence of the two formulations was determined in 20 healthy subjects with a single-dose, two-period, crossover study. A new high-performance liquid chromatographic method for the...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/j.jpba.2004.02.025
更新日期：2004-06-29 00:00:00
abstract：:The IgG activities of antigen recognition, Fc-mediated complement activation and cellular Fcγ-receptors (FcγRs) binding are critical for intravenous immunoglobulin (IVIg) immunotherapy in a variety of immune deficiency diseases. Further, these activities could be influenced by different plasma sources and the IVIg man...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2018.01.021
更新日期：2018-03-20 00:00:00
abstract：:10 homeopathic remedies commercially available (each in 3 dilutions) as sugar granules, where half of them were of organic (and half inorganic) origin were subjected to solid-state infrared spectroscopy, both in middle infrared (ATR-FTIR) and near infrared (NIR) range. Measurements were repeated six times (six days, e...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2015.06.025
更新日期：2015-11-10 00:00:00
abstract：:A reversed phase ion-pair liquid chromatographic method using a base deactivated column and pulsed electrochemical detection on a gold electrode is described. It allows the separation of a mixture of spectinomycin sulfate, lincomycin hydrochloride and their related substances. A step gradient was necessary to obtain a...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/s0731-7085(02)00015-8
更新日期：2002-06-20 00:00:00
abstract：:Potency is an important parameter for evaluation of quality of heparin active pharmaceutical ingredient (API). In this paper the feasibility to determine potency of heparin API with near infrared reflectance spectroscopy (NIRS) coupled with partial least squares (PLS) algorithm is attempted. PLS factors, correlation c...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2009.11.022
更新日期：2010-04-06 00:00:00
abstract：:Tocopherols and tocotrienols, widely described as vitamin E derivatives, have been proven to take part in a number of important biological functions. Among them, antioxidant properties had been investigated and documented in the literature. Since tocochromanols have revealed their plausible beneficial impact on severa...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章,评审
doi：10.1016/j.jpba.2016.02.051
更新日期：2016-08-05 00:00:00
abstract：:This study aims to identify and quantify the six major bioactive flavones of the traditional Chinese medicine Scutellariae Radix (RS), including baicalein, baicalin, wogonin, wogonoside, oroxylin A and oroxyloside in rat after oral administration of a standardized RS extract. A novel, sensitive and selective method fo...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2014.03.033
更新日期：2014-08-01 00:00:00
abstract：:Dictamnine, a furoquinoline alkaloid isolated from the root bark of Dictamnus dasycarpus Turcz. (Rutaceae), is reported to have a wide range of pharmacological activities. In this study, the in vitro metabolic profiles of dictamnine in mouse, rat, dog, monkey, and human liver microsomes were investigated and compared....
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2015.11.016
更新日期：2016-02-05 00:00:00
abstract：:The rapid and inexpensive analysis of the complex cell culture media used in industrial mammalian cell culture is required for quality and variance monitoring. Excitation-emission matrix (EEM) spectroscopy combined with multi-way chemometrics is a robust methodology applicable for the analysis of raw materials, media,...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2012.08.002
更新日期：2012-12-01 00:00:00
abstract：:Chinese medicine formula (CMF) usually contains multiple herbs and its components are very complicated, which therapeutic effects are derived from the integrative activity of multiple components. Therefore, the screening of bioactive compounds in the formula is necessary, though it is very difficult, not only for eluc...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2020.113331
更新日期：2020-07-15 00:00:00
abstract：:Uridinediphosphoglucuronosyl transferases (UGTs) are a group of membrane bound proteins which catalyze the transfer of glucuronic acid from UDP-glucuronic acid to a wide variety of xenobiotics and drug molecules enabling them to be eliminated. The major UGT isoforms found in the rat are 1A1, 1A6, 2B1 and 2B12. Convent...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/s0731-7085(00)00241-7
更新日期：2000-04-01 00:00:00
abstract：:Hemp seed soft gel capsule (HSSGC) is a modernised dosage form that is derived from a traditional Chinese patent medicine, Hemp Seed Pills (HSP). Two dosage forms claim the same therapeutic effects; however, their chemical components and chemical equivalency are unclear. In the present study, an ultra performance liqu...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2013.05.034
更新日期：2013-10-01 00:00:00
abstract：:The group of LiChrospher alkyl-diol silica (ADS) phases that make part of the unique family of restricted-access materials, have been developed as special packings used in the liquid chromatographic integrated sample processing of biofluids. The advantage of these phases lies in the possibility of direct injection of ...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/s0731-7085(03)00251-6
更新日期：2003-08-08 00:00:00
abstract：:An extracellular thermostable antibacterial peptide designated as MFAP9 was purified from marine Aspergillus fumigatus BTMF9 by ammonium sulfate precipitation followed by ion exchange chromatography on a DEAE-sepharose column. The molecular weight of MFAP9 was found to be∼3 kDa in SDS-PAGE gel corresponding a single i...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2020.113808
更新日期：2021-02-05 00:00:00
abstract：:A robust gradient high performance liquid chromatographic (HPLC) procedure is described for the simultaneous determination of melphalan content and related impurities in melphalan drug substance. The sample solution is prepared in methanol and injected. A linear gradient from 5 to 60% acetonitrile in water containing ...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/s0731-7085(99)00011-4
更新日期：1999-07-01 00:00:00
abstract：:The genitourinary oncology field needs integration of results from basic science, epidemiological studies, clinical and translational research to improve the current methods for diagnosis. MS-based metabolomics can be transformative for disease diagnosis and contribute to global health parity. Metabolite panels are pr...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章,评审
doi：10.1016/j.jpba.2019.112905
更新日期：2020-01-30 00:00:00
abstract：:In the present work, a comprehensive methodology to carry out the screening for novel natural functional compounds is presented. To do that, a new strategy has been developed including the use of unexplored natural sources (i.e., algae and microalgae) together with environmentally clean extraction techniques and advan...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2009.03.016
更新日期：2010-01-20 00:00:00
abstract：:When combating counterfeits it is equally important to recognize fakes and to avoid misclassification of genuine samples. This study presents a general approach to the problem using a newly-developed method called Data Driven Soft Independent Modeling of Class Analogy. The possibility to collect representative data fo...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2014.05.033
更新日期：2014-09-01 00:00:00
abstract：:A biologically active benzophenanthridine alkaloid, 6-methoxydihydrosanguinarine (MS), was isolated from Hylomecon plants. Although enantiomers of MS can be separated by chiral HPLC, its isomers rapidly form a racemic mixture in methanol. The rate constants for the racemization of MS enantiomers were 9.20x10(-4)s(-1) ...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2009.08.014
更新日期：2010-01-05 00:00:00
abstract：:Uricase (urate oxidase, UOx) was adsorbed onto a porous carbon-felt (CF) surface and the resulting UOx-adsorbed CF (UOx-CF) was successfully used as a column-type enzyme reactor coupled with a peroxidase-adsorbed CF-based bioelectrocatalytic H(2)O(2) flow-detector to fabricate a flow-amperometric biosensor for uric ac...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2011.08.021
更新日期：2012-01-05 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：:An automated on-line SPE and innovative fast polarity switch bioanalysis method employing dual-gradient liquid chromatography (DGLC) coupled with mass spectrometry (DGLC-MS/MS) was established and validated for the simultaneous determination of ferulic acid, ligustrazine and ligustilide in rat plasma after administrat...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2013.08.038
更新日期：2014-01-01 00:00:00
abstract：:A stability-indicating liquid chromatographic method for the determination of degradation products and impurities in Vagifem, estradiol vaginal tablets has been developed and validated. Vagifem is a low dose preparation containing only 25microg 17beta-estradiol in a tablet matrix of 80mg (a drug to excipient ratio of ...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/S0731-7085(03)00501-6
更新日期：2004-02-04 00:00:00
abstract：:Protein modification generally occurs by addition to the amino acid side-chains of protein at the post-translational stage, for example, by enzymatic or chemical reactions after polypeptide synthesis. Recently, the recombinant hirudin analog CX-397, a potent thrombin inhibitor, was found to contain methylated Ile resi...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章,评审
doi：10.1016/s0731-7085(02)00703-3
更新日期：2003-04-01 00:00:00
abstract：:Two simple sensitive and accurate methods have been developed for the determination of ritodrine hydrochloride in bulk and pharmaceutical preparations. The first method involves the direct measurement of the native fluorescence of the drug in the concentration range 4-9 microg ml(-1), the second method is based on the...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/s0731-7085(98)00093-4
更新日期：1998-11-01 00:00:00
abstract：:Recent data clearly show that the gut microbiota plays a significant role in the biotransformation of many endogenous molecules and xenobiotics, leading to a potential influence of this microbiotic metabolism on activation, inactivation and possible toxicity of these compounds. To study the colonic biotransformation o...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2019.07.016
更新日期：2019-10-25 00:00:00
abstract：:Parenteral amino acid solutions containing tryptophan tend to develop a yellow colouration upon storage. Hence, the aim of the present study was to find out whether tryptophan degradation products are the reason for the yellowing. The degree of discolouration and tryptophan degradation was examined by visual examinati...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2019.112839
更新日期：2020-01-05 00:00:00
abstract：:While capillary electrophoresis has been established as a major enantioseparation technique within the last decade, the potential of capillary electrochromatography is still studied extensively. This review summarizes recent applications of electromigration techniques with regard to the enantioseparation of chiral dru...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章,评审
doi：10.1016/s0731-7085(01)00653-7
更新日期：2002-01-15 00:00:00
abstract：:A direct and sensitive liquid chromatographic method for the determination of propofol in 50 microliters of plasma is described. The separation of the drug and internal standard (methyldopa) was achieved using a 4 microns particle size C1R cartridge (10 cm x 8 mm i.d.) in conjunction with a radial compression system a...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/0731-7085(96)01818-3
更新日期：1996-10-01 00:00:00
