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描述
Distribution of Poly- and Perfluoroalkyl Substances in Matched Samples from Pregnant Women and Carbo...
资料库号码: JOUR134774221 | 格式: 网页 | 文档大小: - | 年: 2013 | 内容类型: 文献检索

该论文在世界范围内首次提出全氟化合物(PFASs)在母亲-胎儿之间的传递效率随碳链长度的增加而呈“U”形传递规律,为系统评价不同碳链长度PFASs的胎儿暴露风险提供了全新的依据。普通HPLC-MS/MS对PFASs的检测限(LOQs)约为0.1-0.2 ng/mL,而本研究中采用的UPLC-MS/MS对PFASs的LOQs可达到0.01-0.03 ng/mL,灵敏度提高了一个数量级,可靠的分析手段为“U”形传递规律的澄清提供了保障。

Perfluorinated Compounds in Human Blood, Water, Edible Freshwater Fish, and Seafood in China: Daily ...
资料库号码: JOUR134774225 | 格式: 网页 | 文档大小: - | 年: 2011 | 内容类型: 文献检索

该论文较早的证实我国成人体内全氟辛烷磺酸(PFOS)的暴露途径存在地区差异性,为全面评价我国居民PFOS的暴露风险提供了参考。

多元数学统计方法分析传统草药使用UPLC 超高效液相色谱/TOF-MS飞行时间质谱比较不同样品种类
资料库号码: JOUR10163714 | 格式: PDF | 文档大小: 971.54 kB | 年: 2010 | 内容类型: 文献检索

多元数学统计方法分析传统草药,使用UPLC超高效液相色谱/TOF-MS飞行时间质谱比较不同样品种类

Lipid profiling of complex biological mixtures by liquid chromatography/mass spectrometry using a no...
资料库号码: JOUR134958970 | 格式: 网页 | 文档大小: - | 年: 2017 | 内容类型: 文献检索

A novel data-independent acquisition method is detailed that incorporates a scanning quadrupole in front of an orthogonal acceleration time-of-flight (TOF) mass analyser. This approach is described and the attributes are compared and contrasted to other D...

HDX Publications
资料库号码: JOUR134933782 | 格式: 网页 | 文档大小: - | 年: 2017 | 内容类型: 文献检索

HDX publications, hydrogen deuterium exchange,

msPurity: Automated Evaluation of Precursor Ion Purity for Mass Spectrometry-Based Fragmentation in ...
资料库号码: JOUR134932385 | 格式: 网页 | 文档大小: - | 年: 2017 | 内容类型: 文献检索

Tandem mass spectrometry (MS/MS or MS2) is a widely used approach for structural annotation and identification of metabolites in complex biological samples.

Case reports: Four concomitant non-fatal intoxications with AB-FUBINACA and MDMA
资料库号码: JOUR134932377 | 格式: 网页 | 文档大小: - | 年: 2017 | 内容类型: 文献检索

We report four cases of non-lethal intoxication with a mix of synthetic cannabinoid (AB-FUBINACA) and ecstasy. Four young (19- to 24-year-old) men were simultaneously admitted to the emergency department after sniffing an unknown white powder in addition ...

A novel antioxidant peptide derived from wheat germ prevents high glucose-induced oxidative stress i...
资料库号码: JOUR134932379 | 格式: 网页 | 文档大小: - | 年: 2017 | 内容类型: 文献检索

The ingestion of whole wheat products is responsible for the prevention of a number of chronic diseases. The aim of this study is to characterize the molecular properties of a novel wheat germ-derived antioxidant peptide (AOP) in protection against high g...

Retrospective identification of 25I-NBOMe metabolites in an intoxication case
资料库号码: JOUR134932381 | 格式: 网页 | 文档大小: - | 年: 2017 | 内容类型: 文献检索

New psychoactive substances (NPS) recently appeared on the recreational drugs market. Among them, N-Benzyl-Oxy-Methyl (NBOMe) derivatives are concern by mainly several reports in the literature of use and associated acute toxicity over the last 6 years, a...

Green synthesis of aurones and related compounds under solvent-free conditions
资料库号码: JOUR134932198 | 格式: 网页 | 文档大小: - | 年: 2016 | 内容类型: 文献检索

3-Coumaranones were condensed with aldehydes on alumina or alumina–potassium fluoride without solvent under microwave irradiation or classical heating. Novel aurones and analogues bearing ferrocenyl, benzodioxole or benzodioxane groups were obtained in go...

Simultaneous quantification of gatifloxacin, moxifloxacin, and besifloxacin concentrations in cornea...
资料库号码: JOUR134932200 | 格式: 网页 | 文档大小: - | 年: 2017 | 内容类型: 文献检索

The fourth-generation fluoroquinolones are widely used as ophthalmic antimicrobials. This study aimed to validate a new analytical technique for simultaneous quantification of gatifloxacin, moxifloxacin, and besifloxacin concentrations in the cornea and a...

Combination of 1H NMR and chemometrics to discriminate manuka honey from other floral honey types fr...
资料库号码: JOUR134932202 | 格式: 网页 | 文档大小: - | 年: 2017 | 内容类型: 文献检索

Manuka honey is a product produced essentially in New Zealand, and has been widely recognised for its antibacterial properties and specific taste. In this study, 264 honeys from New Zealand and Australia were analysed using proton NMR spectroscopy coupled...

Flavonoids and a Limonoid from the Fruits of Citrus unshiu and Their Biological Activity
资料库号码: JOUR134932204 | 格式: 网页 | 文档大小: - | 年: 2016 | 内容类型: 文献检索

The fruits of Citrus unshiu are one of the most popular and most enjoyed fruits in Korea. As we continue to seek for bioactive metabolites from Korean natural resources, our study on the chemical constituents of the fruits of C. nshiu resulted in the isol...

Targeted approach for qualitative screening of pesticides in salmon feed by liquid chromatography co...
资料库号码: JOUR134929137 | 格式: 网页 | 文档大小: - | 年: 2017 | 内容类型: 文献检索

This novel hyphenation allows a straightforward estimation of the collision cross section (CCS), a physicochemical property that recently has been proposed as an additional identification point for pesticides.

Comprehensive characterization of ethoxyquin transformation products in fish feed by traveling-wave ...
资料库号码: JOUR134929135 | 格式: 网页 | 文档大小: - | 年: 2017 | 内容类型: 文献检索

Feed additives are typically used in intensive farming production over long periods, and hence, they can accumulate in farmed animal tissues. Concerns regarding the use of ethoxyquin as an antioxidant feed additive, have recently arisen due to its potenti...

Improving Sensitivity and Linear Dynamic Range of Intact Protein Analysis Using a Robust and Easy to...
资料库号码: JOUR134928352 | 格式: PDF | 文档大小: 4014.53 kB | 年: 2017 | 内容类型: 文献检索

This articles demonstrates an integrated microfluidic LC device coupled to a QTOF is capable of improving sensitivity and linearity for intact protein analysis.

Peer-Reviewed literature for microflow LC-MS
资料库号码: JOUR134923870 | 格式: PDF | 文档大小: 140.32 kB | 年: 2017 | 内容类型: 文献检索

The following is a compendium of microflow LC-MS-based peer reviewed journal articles using Waters® ionKey/MS™ System.

Simple Method Development for the Separation of Chiral Synthetic Cannabinoids using Ultra High Perfo...
资料库号码: JOUR134919331 | 格式: PDF | 文档大小: 1157.1 kB | 年: 2016 | 内容类型: 文献检索

The efficiency of UHPSFC is demonstrated for rapid enantiomeric separation of chiral synthetic cannabinoids.

Development and validation of an IA-LC/MS method to quantitate active and total B-type natriuretic p...
资料库号码: JOUR134915993 | 格式: 网页 | 文档大小: - | 年: 2016 | 内容类型: 文献检索

2016 journal citation on an LC-MS assay developed to characterize the ratio of active to total B-type natriuretic peptide.

Rapid Detection of Necrosis in Breast Cancer with Desorption Electrospray Ionization Mass Spectromet...
资料库号码: JOUR134915997 | 格式: 网页 | 文档大小: - | 年: 2016 | 内容类型: 文献检索

2016 journal citation on a DESI-MSI workflow for the characterization of necrotic tumors in breast tissue.

Development and Validation of an IA-LC/MS Method to Quantitate Active and Total B-Type Natriuretic P...
资料库号码: JOUR134915648 | 格式: 网页 | 文档大小: - | 年: 2016 | 内容类型: 文献检索

The assay described here provides a more specific and sensitive assay for active BNP and also allows for a quantitative assessment of its relationship to total circulating BNP.

Defining the Wheat Gluten Peptide Fingerprint via a Discovery and Targeted Proteomics Approach
资料库号码: JOUR134915464 | 格式: 网页 | 文档大小: - | 年: 2016 | 内容类型: 文献检索

An LC-MS/MS method based on selected reaction monitoring (SRM) was developed on a triple quadrupole mass spectrometer for the specific detection of the target peptides

Elucidating the effects of pH shift on IgG1 monoclonal antibody acidic charge variant levels in Chin...
资料库号码: JOUR134911499 | 格式: 网页 | 文档大小: - | 年: 2016 | 内容类型: 文献检索

In this work, to investigate the effect of lowering culture pH in the stationary phase on acidic charge variant contents in fed-batch cultures and its mechanism, cell culture experiments in 2-L bioreactors were firstly performed to explore the changes in ...

2-(4-Fluorophenyl)-quinazolin-4(3H)-one as a novel tyrosinase inhibitor: Synthesis, inhibitory activ...
资料库号码: JOUR134911503 | 格式: 网页 | 文档大小: - | 年: 2016 | 内容类型: 文献检索

2-(4-Fluorophenyl)-quinazolin-4(3H)-one (FQ) was synthesized, and its structure was identified with 1H nuclear magnetic resonance (1H NMR), 13C nuclear magnetic resonance (13C NMR), fourier transform infrared spectroscopy (FTIR), and high resolution mass ...

High-Throughput, Automated Protein A Purification Platform with Multiattribute LC−MS Analysis for Ad...
资料库号码: JOUR134911505 | 格式: 网页 | 文档大小: - | 年: 2016 | 内容类型: 文献检索

The levels of many product related variants observed during the production of monoclonal antibodies are dependent on control of the manufacturing process, especially the cell culture process. However, it is difficult to characterize samples pulled from th...