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You searched for: Author "Yang, Zhaoguang" Remove constraint Author: "Yang, Zhaoguang" Journal Analytical and bioanalytical chemistry Remove constraint Journal: Analytical and bioanalytical chemistry
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1. A GC/MS method for determination of succinylacetone in Arabidopsis thaliana

Author:
Yang, Zhaoguang,   et al.   ; Zhou, Lizi; Zhi, Tiantian; Zhou, Zhou; Wang, Xiaochen; Ren, Chunmei; Qiu, Bo;     Show all 7 Authors
Source:
Analytical and bioanalytical chemistry 2016 v.408 no.17 pp. 4661-4667
ISSN:
1618-2642
Subject:
Arabidopsis thaliana; cell death; detection limit; gas chromatography-mass spectrometry; humans; isomers; metabolism; metabolites; mutants; toxicity; toxicology; tyrosine; wilting
Abstract:
... Succinylacetone was known to be a toxic metabolite of tyrosine in human and animals caused by blockage of the final step in tyrosine degradation pathway, but its existence in plant was unclear though the metabolic disturbance of tyrosine was also found in plant. A GC-MS method for determination of succinylacetone in Arabidopsis thaliana was developed for the first time. Both oximation and silylati ...
DOI:
10.1007/s00216-016-9551-7

2. Picogram determination of estrogens in water using large volume injection gas chromatography-mass spectrometry

Author:
Yang, Zhaoguang,   et al.   ; Hu, Ruikang; Zhang, Lifeng;     Show all 3 Authors
Source:
Analytical and bioanalytical chemistry 2008 v.390 no.1 pp. 349-359
ISSN:
1618-2642
Subject:
derivatization; detection limit; estrone; gas chromatography-mass spectrometry; temperature
Abstract:
... In this study, a simple and efficient large volume injection gas chromatography-mass spectrometry (GC-MS) method, via a programmable-temperature vaporizer (PTV) inlet, has been developed and applied in the determination of estrogens in environmental water samples without a prior derivatization process. Three commonly used estrogens estrone, 17 β-estradiol and 17 α-ethynylestradiol were selected as ...
DOI:
10.1007/s00216-007-1683-3
PubMed:
18026863

3. Rapid analysis of Gram-positive bacteria in water via membrane filtration coupled with nanoprobe-based MALDI-MS

Author:
Yang, Zhaoguang,   et al.   ; Li, Shuping; Guo, Zhongxian; Wu, Hui-Fen; Liu, Ying; Woo, Chee Hoe;     Show all 6 Authors
Source:
Analytical and bioanalytical chemistry 2010 v.397 no.6 pp. 2465-2476
ISSN:
1618-2642
Subject:
Bacillus cereus; Bacillus subtilis; Enterococcus faecium; Gram-negative bacteria; Gram-positive bacteria; Staphylococcus aureus; aqueous solutions; desorption; detection limit; filtration; ionization; magnetic separation; magnetite; mass spectrometry; nanoparticles; rapid methods; tap water; water analysis; water reservoirs
Abstract:
... Matrix-assisted laser desorption/ionization (MALDI) mass spectrometry (MS) is challenging when it is directly applied to identify bacteria in water. This study demonstrates a rapid, sensitive, and selective technique for detection of Gram-positive bacteria in water. It involves a combination of membrane filtration (MF) and vancomycin-conjugated magnetite nanoparticles (VNPs) to selectively separat ...
DOI:
10.1007/s00216-010-3777-6
PubMed:
20512317