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Simultaneous speciation of arsenic (As(III), MMA, DMA, and As(V)) and selenium (Se(IV), Se(VI), and SeCN−) in petroleum refinery aqueous streams

High-performance liquid chromatography (HPLC) coupled to an ICP-MS with an octapole reaction system (ORS) has been used to carry out quantitative speciation of selenium (Se) and arsenic (As) in the stream waters of a refining process.

出版机构:Springer Verlag

刊物名称:Analytical and Bioanalytical Chemistry

出版时间:2010

ISSN:1618-2642

数据源:报刊文摘

Development of a method to measure methadone enantiomers and its metabolites without enantiomer standard compounds for the plasma of methadone maintenance patients

This method was established by the characteristics of recombinant cytochrome P-450 (CYP) isozymes, where CYP2C19 prefers to metabolize R-methadone and CYP2B6 prefers to metabolize S-methadone. We incubated the racemic methadone standard with either enzyme for 24 h.

出版机构:John Wiley & Sons, Ltd.

刊物名称:Biomedical Chromatography

出版时间:2010

ISSN:0269-3879

数据源:报刊文摘

Supercritical carbon dioxide extraction of bioactive flavonoid from Strobilanthes crispus (Pecah Kaca)

The bioactive flavonoid compounds of Strobilanthes crispus (Pecah Kaca) leaves obtained by using supercritical carbon dioxide (SC-CO2) extraction were investigated and the obtained crude extract yields were compared in order to select the best operation parameters.

出版机构:Elsevier Science

刊物名称:Food and Bioproducts Processing

出版时间:2010

ISSN:0960-3085

数据源:报刊文摘

Application of triacylglycerol and fatty acid analyses to discriminate blended sesame oil with soybean oil

Triacylglycerols (TAGs) and fatty acids in the mixture of sesame oil (SO) with soybean oil were analysed using high performance liquid chromatography (HPLC)?an evaporative light scattering detector (ELSD) and gas chromatography (GC)?a flame ionisation detector (FID).

出版机构:Elsevier Science

刊物名称:Food Chemistry

出版时间:2010

ISSN:0308-8146

数据源:报刊文摘

Changes in physico-chemical and functional properties during convective drying of aloe vera (Aloe barbadensis) leaves

loe vera leaves were dried at different temperatures in hot air oven and powdered. The percent powder yield was found 2.60%, 2.60%, 2.55% and 2.52% at 50, 60, 70 and 80?C respectively. Powder samples had the pH (1% solution) 3.51, 3.53, 3.52 and 3.

出版机构:Elsevier Science

刊物名称:Food and Bioproducts Processing

出版时间:2010

ISSN:0960-3085

数据源:报刊文摘

On-line HPLC-ABTS screening and HPLC-DAD-MS/MS identification of free radical scavengers in Gardenia (Gardenia jasminoides Ellis) fruit extracts

Gardenia jasminoides Ellis is a folk medicine for pharmacological activities in China. In this study, on-line HPLC-ABTS and HPLC-DAD-MS/MS analyses were applied to screen and identify free radical scavengers in gardenia fruit extracts (GFE).

出版机构:Elsevier Science

刊物名称:Food Chemistry

出版时间:2010

ISSN:0308-8146

数据源:报刊文摘

Comparison of Pharmacokinetic Profiles of Moxifloxacin in Caesarean versus Non-Pregnant Sectioned Women by Fully Validated HPLC with Fluorescence Detection

In this study, a simple, rapid, cost-effective, and sensitive reversed-phase high-performance liquid chromatographic method has been developed and validated for the analysis of moxifloxacin in plasma. The chromatographic separation was achieved on a Zorbax Eclipse XDB-C18 column (150 mm x 4.6 mm i.

出版机构:Bentham Science Publishers

刊物名称:Combinatorial Chemistry & High Throughput Screening

出版时间:2010

ISSN:1386-2073

数据源:报刊文摘

Comparison on phenolic compounds in Vitis vinifera cv. Cabernet Sauvignon wines from five wine-growing regions in China

Phenolic compounds in the non-aged ?Cabernet Sauvignon? wines from five wine-growing regions in China were investigated using HPLC-MS. The wines from the regions that have similar ?terroir?

出版机构:Elsevier Science

刊物名称:Food Chemistry

出版时间:2011

ISSN:0308-8146

数据源:报刊文摘

Identification and characterization of flavonoids from semen zizyphi spinosae by high-performance liquid chromatography/linear ion trap FTICR hybrid mass spectrometry

Separation was performed on an HYPERSIL C18 column by gradient elution using CH3CN/H2O-CH3COOH as the mobile phase at a flow rate of 0.8 ml/min. UV spectral data, accurate molecular weights, and multi-stage MS/MS fragmentation information were obtained.

出版机构:Taylor & Francis

刊物名称:Journal of Asian Natural Products Research

出版时间:2010

ISSN:1028-6020

数据源:报刊文摘

Analysis of Purine in Purine-Rich Cauliflower

6 and 43.2 mg/100 g, respectively. Nucleotide content was increased from 0.02 to 50.8 ?mol/100 g, and nucleoside content was decreased from 12.4 to 7.7 ?mol/100 g, by heating.

出版机构:Taylor & Francis

刊物名称:Nucleosides Nucleotides

出版时间:2010

ISSN:1525-7770

数据源:报刊文摘