Abstract：
:Quantitative IR- and Raman spectroscopic determinations of four cephalosporin antibiotics in six solid binary mixtures have been conducted. This is a new approach for spectroscopic determination of these antibiotics, since the corresponding quantitative analysis in solution only has been reported so far. The correlation coefficient r2 was found to be in the confidence intervals within 99.32-99.88% and 99.90-95.54% for the systems under study by using the absorption ratios of the characteristic bands at 800 cm(-1) and 721 cm(-1) present in the IR- and Raman spectra of the antibiotic compounds cephalexin, cephalotin, cephaloglycin and cephamandole, respectively. Solid-state linear dichroic infrared (IR-LD) spectral analysis of the solid mixtures was carried out in order to obtain experimental IR-spectroscopic assignment of the compounds studied. Independent high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) analysis was performed for the validation of the vibrational spectroscopic data. The application of this instrumental analytical tool for the analysis of 10 tablets of the commercial products Cefamandole and Cefalotin (Actavis) was also studied.
journal_name
J Pharm Biomed Analjournal_title
Journal of pharmaceutical and biomedical analysisauthors
Koleva BB,Kolev TM,Spiteller Mdoi
10.1016/j.jpba.2008.04.026subject
Has Abstractpub_date
2008-09-10 00:00:00pages
201-4issue
1eissn
0731-7085issn
1873-264Xpii
S0731-7085(08)00240-9journal_volume
48pub_type
杂志文章abstract：:The relationship between a reversed-phase high-performance liquid chromatography (RP-HPLC) retention parameter and various calculated log P-values of our previously synthesized alpha-aryl-N-cyclopropyl-nitrone derivatives was investigated. The RP-HPLC experiments were carried out with acetonitrile-water and methanol-w...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2005.05.019
更新日期：2005-10-04 00:00:00
abstract：:Capillary zone electrophoresis (CZE) with carboxyethyl-beta-cyclodextrin (CE-beta-CD) dissolved in the operating buffer was used for the separation and determination of enantiomers of phenothiazine antihistaminic, dioxopromethazine, in commercial pharmaceutical preparation, eye drops. This chiral selector, negatively ...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/s0731-7085(03)00254-1
更新日期：2003-09-19 00:00:00
abstract：:Isoflavones are suitable guest molecules for inclusion complex formation with cyclodextrins (CDs). The molecular encapsulation with CDs results in a solid, molecularly dispersed form and in a significantly improved aqueous solubility of isoflavones. Genistein, a key isoflavone constituent of Ononidis spinosae radix wa...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2008.06.007
更新日期：2008-11-04 00:00:00
abstract：:A simple, sensitive and rapid liquid chromatography/tandem mass spectrometry (LC-MS/MS) method was developed and validated for the quantification of gabapentin, a new antiepileptic drug, in human plasma using its structural analogue, 1,1-cyclohexane diacetic acid monoamide (CAM) as internal standard. The method involv...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2005.07.012
更新日期：2006-02-13 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：:A sensitive reverse phase high performance liquid chromatography-electrospray ionization-mass spectrometry (RP-HPLC-ESI-MS) method has been developed and validated for the determination of hydromorphone in human plasma using naloxone as the internal standard (IS). After alkalization with saturated sodium bicarbonate, ...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2011.11.012
更新日期：2012-03-05 00:00:00
abstract：:The new approach to drug development, especially for cardiovascular and brain diseases, brought to synthesis of new lipophillic derivatives of strong calcium chelator BAPTA - DP-b99 and DP-109. Due to their chelating ability, these compounds require metal-free stationary phases, and their high hydrophobicity resulted ...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/s0731-7085(00)00567-7
更新日期：2001-03-01 00:00:00
abstract：:A simple, rapid and reproducible method for identification and quantification of iodopropynyl butylcarbamate (IPBC) in different cosmetic formulations is presented. The determination was carried out using a high-performance liquid chromatography (HPLC) procedure on a reversed phase column coupled to a single quadrupol...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/s0731-7085(01)00356-9
更新日期：2001-07-01 00:00:00
abstract：:Losartan potassium is an angiotensin II receptor blocker. It has been formulated and marketed as a tablet dosage from (COZAAR). A reversed-phase high-performance thin-layer chromatography method has been validated and shown to be sensitive, efficient, and reliable, and can be used as an excellent alternative to the HP...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/s0731-7085(97)00251-3
更新日期：1998-08-01 00:00:00
abstract：:As a preliminary study of the utility of the natural stable-isotopic differentiation of batch samples produced by different synthetic pathways, multi-stable-isotopic analyses (delta(13)C, delta(15)N, delta(18)O, deltaD) of 53 samples of the antiepileptic drug, Topiramate, produced by three different synthetic pathways...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2005.03.011
更新日期：2005-09-01 00:00:00
abstract：:A simple, specific and reliable 1H-NMR spectroscopic method for the quantitative determination of the optical purity of indacrinone is described. After conversion of the S(+)- and R(-)-enantiomers to their methyl ester derivatives, they were coordinated with chiral europium(III) or praseodymium(III) shift reagents in ...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/0731-7085(89)80016-0
更新日期：1989-01-01 00:00:00
abstract：:Detection of higher-order aggregates (HOA) using size-exclusion chromatography (SEC) was found to be variable for a basic protein, using exposed-silanol or diol-silica-based SEC columns. Preparations of the tetrameric biopharmaceutical enzyme Erwinia chrysanthemil-asparaginase (ErA), which has an isoelectric point of ...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2017.03.004
更新日期：2017-05-30 00:00:00
abstract：:3'-Deoxy-3'-[18F]fluorothymidine ([18F]-FLT) has recently been described as a positron emission tomography (PET) radiopharmaceutical for visualizing cellular proliferation in vivo. All published radiosyntheses of [18F]-FLT provide crude products that must be purified before injection to human. This study describes a r...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2007.04.034
更新日期：2007-09-21 00:00:00
abstract：:The purpose of this study was to develop a robust reverse phase-HPLC method for the separation of hydrolyzed protamine sulfate peptides using a quality by design approach. A Plackett-Burman experimental design was utilized to screen the effects of mobile phase pH, flow rate, column temperature, injection volume and me...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2012.01.002
更新日期：2012-03-25 00:00:00
abstract：:The subject of the analysis of various elements, including metals and metalloids, in the pharmaceutical industry has seen increasing importance in the last 10-15 years, as modern analytical instrumentation has afforded analysts with the opportunity to provide element-specific, accurate and meaningful information relat...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章,评审
doi：10.1016/j.jpba.2010.11.030
更新日期：2011-06-25 00:00:00
abstract：:Solid phase extraction (SPE) and HPLC were used for simultaneous determination of hesperidin, diosmin and eriocitrin in Iranian lime juice samples. The method involved very simple efficient SPE with polyamide cartridge, the use of mixture of water/acetonitrile/acetic acid (78:19:3, v/v) as a mobile phase at a flow rat...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2011.05.015
更新日期：2011-09-10 00:00:00
abstract：:Amentoflavone, a kind of biflavonoid existing in several medicinal plants such as Selaginella moellendorfi and Gingko biloba, possesses anti-inflammatory, antioxidant, anti-virus, anti-tumor activities. In the present study, a new reliable and sensitive UHPLC-ESI-MS/MS method was developed to determine the permeabilit...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2020.113441
更新日期：2020-09-10 00:00:00
abstract：:Icariin, the major flavonoid constituent of the traditional Chinese medicine Epimedii Folium, is extensively researched owing to its comprehensive beneficial effects. This study aimed at identifying the in vivo metabolites and the metabolic profiling in rats after oral administration at a dose of icariin (100 mg/kg) w...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2019.02.021
更新日期：2019-05-10 00:00:00
abstract：:After assay validation in an originating laboratory, an analytical method needs to be transferred to one or several production laboratories, because measured outcomes among the laboratories must agree. To state agreement, the locations (e.g. means) must be equivalent and the production laboratory must be non-inferior ...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2012.10.032
更新日期：2013-02-23 00:00:00
abstract：:Quantitative bioanalysis and especially pharmacokinetic studies are challenging since only low volumes of biological material are available and low concentrations (ng/ml) are often expected. In this context, volumetric absorptive microsampling (VAMS) devices were developed to accurately collect 10 or 20μl of whole blo...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2017.02.060
更新日期：2017-06-05 00:00:00
abstract：:A high-performance liquid chromatographic method for the determination of lomefloxacin in human plasma has been developed and validated. A solid-phase extraction procedure was used to isolate lomefloxacin from the biological matrix prior to the quantitative analysis. The compound was separated on a Vydac anion-exchang...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/0731-7085(93)80089-j
更新日期：1993-11-01 00:00:00
abstract：:A sensitive method for the analysis of unconjugated morphine, codeine, normorphine and total morphine after hydrolysis of glucuronide conjugates is described. The method was applicable to 50-microliters volumes of plasma. The analytes were converted to heptafluorobutyryl (HFB) derivatives before analysis by gas chroma...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/0731-7085(94)00121-h
更新日期：1995-01-01 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：:Brucellosis is a serious zoonosis with a rapid increase in incidence across epidemic regions. Currently, there are numerous methods for diagnosing brucellosis. However, these studies often have a few defects, such as low sensitivity, poor specificity, time consuming, laborious, and even potential biological risk. To o...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2017.03.002
更新日期：2017-07-15 00:00:00
abstract：:Plants of the Amaryllidaceae family are a well-known source of tetrahydroisoquinoline alkaloids with a wide range of biological activities, including antiviral, antitumoral, antiparasitic, psychopharmacological, and acetylcholinesterase inhibitory, among others. Recent advances in the use of GC or LC coupled to MS hav...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2012.05.009
更新日期：2012-11-01 00:00:00
abstract：:A new tadalafil analogue was detected and isolated from a dietary supplement, the structure was elucidated by means of nuclear magnetic resonance (NMR) and mass spectroscopy. The compound was determined to be diethylaminopretadalafil, which might be derived from a precursor in the synthesis of tadalafil. ...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2014.01.043
更新日期：2014-06-01 00:00:00
abstract：:The diffusion of drug residues in wastewaters and surface waters as rivers and streams may constitute a problem for the environment, with consequences on the ecosystem and also on the human health. This paper deals with the study of the photo-induced transformation of amiloride, an orally administered diuretic agent, ...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2008.01.014
更新日期：2008-09-29 00:00:00
abstract：:Linezolid (LZD) is a widely used antimicrobial that is active against a broad range of disease-causing bacteria. Myelosuppression is major treatment-limiting toxicity of LZD that occurs more frequently in patients with renal insufficiency. Quantification of LZD and its two primary metabolites (PNU-142300 and PNU-14258...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2019.112968
更新日期：2020-01-30 00:00:00
abstract：:The herbal pair Zhimu-Baihe (Zhimu: Anemarrhena asphodeloides; Baihe: Lilium brownii var. viridulum) is a traditional Chinese medicament used for the treatment of depression. However, the relevant mechanisms of action has not been clarified. This study investigated the anti-depressant activity of the total saponins fr...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/j.jpba.2016.06.019
更新日期：2016-09-05 00:00:00
abstract：:The stability indicating properties of the USP method for the assay of fentanyl in fentanyl citrate injection were evaluated [1] by analyzing fentanyl drug substance and product after acid, hydrogen peroxide, heat, and light treatment. N-phenyl-N-(4-piperidinyl)propionamide (PPA), which is a known degradation product/...
journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
doi：10.1016/s0731-7085(99)00077-1
更新日期：1999-08-01 00:00:00
