铕测定方法的近期进展

对铕测定方法的近期进展作了评述，涉及的测定方法有荧光光度法、吸光光度法、原子发射光谱法、原子吸收光谱法、X-射线荧光光谱法、质谱法及伏安法等。还对该领域的研究动态作了简要讨论（引述文献59篇）。     

天然药物及制剂中微量元素硒的测定方法概况

硒是人体必需的微量元素，具有抗肿瘤、防衰老、防辐射和增强机体免疫力等多种功能。本文就国内近年来对天然药物及其制剂中微量元素硒的分析方法概况作一综述，包括：原子吸收分光光度法、荧光分光光度法、电感耦合等离了光谱法、催化分光光度法、分光光度法、化学发光淬灭法、极谱法、中子活化分析法和色谱法等。     

中药中痕量铅测定方法的研究进展

综述了近年(2000-2016年)来国内外中药中痕量铅的测定方法的研究进展,包括原子吸收光谱法、紫外-可见分光光度法、原子发射光谱法、原子荧光光谱法、电化学分析法、高效液相色谱法、质谱法和生物传感器法等(引用文献112篇)。     

微乳液介质中1,5-二(2-羟基-5-溴苯)-3-氰基甲月替光度法测定微量铅

铅是对人体有害的元素,如果人们经常食用被铅污染的食品,铅就会在人体内积累,引起慢性中毒。目前,铅的测定方法主要有原子吸收光谱法、分光光度法、原子荧光光谱法、气相色谱法和电化学法等,其中分光光度法具有简便、快速     

金属材料分析

评述了2007年10月至2009年12月期间国内在金属材料分析领域的现状及进展概况.内容包括重量分析法、滴定分析法、分光光度法和荧光光度法、催化动力学光度法、原子吸收光谱法和原子荧光光谱法、电感耦合等离子体原子发射光谱法和电感耦合等离子体质谱法、光电直读光谱法、X射线荧光光谱法、原位统计分析及电化学方法等其他分析方法、...     

金属材料分析

评述了2002年7月至2005年12月期间国内在金属材料分析领域的现状及进展概况。内容包括标准和标准样品、重量分析法、滴定分析法、分光光度法和荧光光度法、催化动力学光度法、原子吸收光谱法和原子荧光光谱法、原子发射光谱法、ICP-质谱、X-射线荧光光谱法、气体元素的分析、电化学方法等,涉及文献621篇。     

金属材料分析(Ⅰ)

评述了2006～2007年两年间,金属材料分析领域的国内现状与进展概况.内容包括:称量分析法;滴定分析法;分子光谱分析(分光光度法、催化动力学分光光度法);原子光谱分析(原子吸收光谱法、原子荧光光谱法、原子发射光谱法、质谱分析法、X-射线荧光光谱法);电化学分析;金属中气体分析;原位分析;标准分析方法制定与标准物质(标准样品)研制;不确定度评定等在金属材料分析中的应用进展.     

稀土元素分析

本文对１９９６年￣１９９７年间稀土材料分析方面的进展进行了综述。内容包括概述，分离与富集方法，重量与滴定分析法，吸光光度法，荧光分析法，原子发现光谱法，原子吸收光谱法，Ｘ射线荧光光谱法，质谱分析法，电化学分析法，活化分析法，流动注射分析法等。     

环境中氯苯类化合物的分析研究进展

氯苯类化合物（邻二氯苯、对二氯苯、间二氯苯、三氯苯、氯甲苯、二氯甲苯和三氯甲苯等）是环境中需要重点监测的致癌污染物,文章介绍了近年来国内外环境中氯苯类化合物的分析研究进展。主要的分析测定方法有：普通气相色谱法、固相微萃取．毛细管气相色谱法、吹扫捕集．气相色谱法、顶空气相色谱法、高效液相色谱法、光度法和红外光谱法等。分析测定方法和结果对评价环境污染具有重要意义。     

DMA 80直接测汞仪测定生活饮用水中汞

汞是生活饮用水的毒理学指标[1].汞被人体肠道吸收后,主要富集在肝、胃、脑组织等部位,可对神经系统造成危害[2].目前,测定水中汞的常用方法有氢化物发生原子荧光光谱法、冷原子吸收光谱法、双硫腙分光光度法、色谱法等[3-4].氢化物发生原子荧光光谱法是近年发展较快的一种分析技术,方法准确可靠、灵敏度高,但是该法存在样品处理耗时较长,需要消耗化学试剂等缺点.     

Liquid chromatography and mass spectrometry of haem biosynthetic intermediates: a review

This article discusses the separation, analysis and characterisation of intermediates and oxidative by-products of the haem biosynthetic pathway by liquid chromatography and mass spectrometry. Techniques reviewed include high-performance liquid chromatography, ultra-high-performance liquid chromatography, capillary electrophoresis, ion mobility spectrometry, mass spectrometry and tandem mass spectrometry. The emphasis was on the analysis of biological and clinical samples.     

Enhancing the selectivity of liquid chromatography–mass spectrometry by using trilinear decomposition on LC‐MS data: An application to three‐way calibration of coeluting analytes in human plasma

The high selectivities of liquid chromatography and mass spectrometry make liquid chromatography–mass spectrometry one of the most popular tools for quantitative analysis in complex chemical, biological, and environmental systems, while the potential mathematical selectivity of liquid chromatography–mass spectrometry is rarely investigated. This work discussed the mathematical selectivity of liquid chromatography–mass spectrometry by three‐way calibration based on the trilinear model, with an application to quantitative analysis of coeluting aromatic amino acids in human plasma. By the trilinear decomposition of the constructed liquid chromatography–mass spectrometry‐sample trilinear model and individual regression of the decomposed relative intensity versus concentration, the proposed three‐way calibration method successfully achieved quantitative analysis of coeluting aromatic amino acids in human plasma, even in the presence of uncalibrated interferent(s) and a varying background. This analytical method can ease the requirements for sample preparation and complete chromatographic separation of components, reduce the use of organic solvents, decrease the time of chromatographic separation, and increase the peak capacity of liquid chromatography–mass spectrometry. As a “green analytical method”, the liquid chromatography–mass spectrometry three‐way calibration method can provide a promising tool for direct and fast quantitative analysis in complex systems containing uncalibrated spectral interferents, especially for the situation where the coelution problem is difficult to overcome.     

Mass spectrometry-based glycoprofiling of biopharmaceuticals by using an automated data processing tool: SimGlycan®

The therapeutic and immunological properties of biopharmaceuticals are governed by the glycoforms contained in them. Thus, bioinformatics tools capable of performing comprehensive characterization of glycans are significantly important to the biopharma industry. The primary structural elucidation of glycans using mass spectrometry is tricky and tedious in terms of spectral interpretation. In this study, the biosimilars of a therapeutic monoclonal antibody and an Fc-fusion protein with moderate and heavy glycosylation, respectively, were employed as representative biopharmaceuticals for released glycan analysis using liquid chromatography–tandem mass spectrometry instead of conventional mass spectrometry-based analysis. SimGlycan® is a software with proven ability to process tandem MS data for released glycans could identify eight additional glycoforms in Fc-fusion protein biosimilar, which were not detected during mass spectrometry analysis of released glycans or glyco-peptide mapping of the same molecule. Thus, liquid chromatography–tandem mass spectrometry analysis of released glycans not only complements conventional liquid chromatography–mass spectrometry-based glycan profiling but can also identify additional glycan structures that may otherwise be omitted during conventional liquid chromatography–tandem mass spectrometry based analysis of mAbs. The mass spectrometry data processing tools, such as PMI Byos™, SimGlycan^®, etc., can display pivotal analytical capabilities in automated liquid chromatography–mass spectrometry and liquid chromatography–tandem mass spectrometry-based glycan analysis workflows, especially for high-throughput structural characterization of glycoforms in biopharmaceuticals.     

Glossary of terms for separations coupled to mass spectrometry

This document is a glossary of terms for separations coupled to mass spectrometry. It covers gas chromatography/mass spectrometry, liquid chromatography/mass spectrometry, and supercritical fluid chromatography/mass spectrometry and the sample introduction, ionization, and data analysis methods used with these combined techniques.     

新型污染物的环境质谱技术研究进展

随着科学技术的飞速发展,质谱检测及其联用技术方法正以前所未有的速度、广度和深度全面渗透到环境分析化学中,其在环境监测中的使用已经或正在日常化.近年来,一些高分辨质谱及其与色谱等的联用技术在目标污染物和非目标污染物的同时甄别鉴定和分析中发挥了重要作用,其对于阐明污染物在环境的归趋具有重要意义.本文对质谱技术及其与气相色谱和液相色谱的联用技术在污染物尤其是新型污染物分析中的进展进行了总结,并对高分辨质谱技术的环境应用研究给于关注,对环境质谱技术的发展方向进行了展望.     

二英类分析研究进展及展望

通过综合介绍国内外二英类物质分析研究的最新动态,包括二英类的前处理和气相色谱法(GC)、液相色谱法(LC)、胶束电动色谱法(MEKC)、质谱法(MS)、气相色谱/质谱(GC/MS)联用和生物分析法等多种分析技术及其改进方法,指出了二英类分析研究工作中现存的问题,对今后的发展动向提出了一些建议.     

Recent methods for the determination of volatile and non-volatile organic compounds in natural and purified drinking water

Four analytical protocols for the extraction and preconcentration of organic residues in natural or purified drinking water were investigated and compared: closed loop stripping analysis; simultaneous extraction-distillation; purge and trap analysis; continuous liquid-liquid extraction. Organic extracts were submitted to a variety of separation and identification techniques. Volatiles were determined by conventional capillary column gas chromatography with tandem mass spectrometry, using triple-stage quadrupole instruments. Non-volatile and thermally labile molecules were investigated by several different techniques (high-temperature gas chromatography, capillary column supercritical fluid chromatography, pyrolysis gas chromatography-mass spectrometry, thermospray liquid chromatography with tandem mass spectrometry and conventional fast-atom bombardment with tandem mass spectrometry). Several samples recently examined in the laboratory provide examples of this multitechnique approach for a more complete knowledge of the organic carbon distribution in water-dissolved organic matter, taking into account organic substances with widely different volatilities, polarities and thermal stabilities.     

Liquid chromatographic purification and detection of anabolic compounds.

The role of liquid chromatography within methods of analysis for steroids, related compounds and beta-agonists in biological samples is discussed. Special attention is given to the application of liquid chromatography in sample preparation and extract clean-up. Different forms of liquid chromatography, including immunoaffinity chromatography, are compared and evaluated. Methods for confirmation based on gas chromatography-mass spectrometry and cryotrapping Fourier transform infrared spectrometry are discussed.     

Comparison of different analytical methods for speciation of seven gadolinium-based magnetic resonance imaging contrast agents and the applications in wastewater and whole blood

Three methods, high-performance liquid chromatography hyphenated with inductively coupled plasma mass spectrometry, high-performance liquid chromatography-tandem mass spectrometry, and ion chromatography, were compared for simultaneous speciation of seven commercial gadolinium-based contrast agents for magnetic resonance imaging. Optimizations of experimental conditions for individual method were conducted, respectively. Methods of high-performance liquid chromatography hyphenated with inductively coupled plasma mass spectrometry and high-performance liquid chromatography-tandem mass spectrometry showed the capability of speciation for all seven target compounds, whereas ion chromatography was only suitable for three of them when using electronic conductivity detector. The limits of detection and limits of qualification by the three methods were compared, and high-performance liquid chromatography hyphenated with inductively coupled plasma mass spectrometry was found to be the most sensitive one. The limits of detection for seven target compounds by high-performance liquid chromatography hyphenated with inductively coupled plasma mass spectrometry were in the range of 0.15–0.55 pg. Thus, high-performance liquid chromatography hyphenated with inductively coupled plasma mass spectrometry was chosen as the final method and successfully applied to speciation analysis of seven gadolinium-based contrast agents in wastewater and whole blood. Compounds of gadoxetic acid disodium, gadobenate dimeglumine, gadodiamide, and gadobentetate dimeglumine were found in wastewater.