High-resolution mass spectrometry measurement of N-terminal carbamylated hemoglobin as a potential marker for chronic diseases with elevated blood urea levels by Fangjun Chen, Priscilla S.-W. Yeung, Carolyn V. Wong, Ruben Y. Luo

Subjects: “…High-resolution mass spectrometry…”
Get full text

Targeted screening and profiling of massive components of colistimethate sodium by two-dimensional-liquid chromatography-mass spectrometry based on self-constructed compound database by Xuan Li, Minwen Huang, Yue-Mei Zhao, Wenxin Liu, Nan Hu, Jie Zhou, Zi-Yi Wang, Sheng Tang, Jian-Bin Pan, Hian Kee Lee, Yao-zuo Yuan, Taijun Hang, Hai-Wei Shi, Hongyuan Chen

Get full text

Determination of egg and milk allergen in food products by liquid chromatography-tandem mass spectrometry based on signature peptides and isotope-labeled internal standard by Sufang Fan, Junmei Ma, Zhuo Liu, Yawei Ning, Meicong Cao, Qiang Li, Yan Zhang

Subjects: “…Liquid chromatography-tandem mass spectrometry…”
Get full text

Comparative analysis of Fenghuang Dancong, Tieguanyin, and Dahongpao teas using headspace solid-phase microextraction coupled with gas chromatography-mass spectrometry and chemometric methods. by Zhangwei Li

“…The volatile components in a total of 21 tea samples of these three types of oolong teas were extracted, determined, and identified by headspace solid-phase microextraction (HS-SPME) combined with gas chromatography-mass spectrometry (GC-MS). In addition, chemometric methods such as hierarchical cluster analysis (HCA), principal component analysis (PCA), and orthogonal partial least squares discriminant analysis (OPLS-DA) were used for distinguishing and classifying the three types of oolong teas on the basis of the similarities and differences in the volatile components. …”
Get full text

Theoretical and Experimental Understanding of the Anomalous Odd-to-Even Isotope Ratios of Tin in a 1 + 1 Single-Colour Resonance Ionization Mass Spectrometry: Revisited by Manda Sankari

Get full text

In situ quantification of fungicide residue on wheat leaf surfaces using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry imaging technology by Xuerui Yang, Mengyao Shi, Minghui Hong, Zhixin Hui, Jiaqi Pan, Guangli Xiu, Lei Zhou

“…To overcome the time-consuming off-site limitations in conventional pesticide detection, this contribution presents an in situ quantitative analysis detection strategy for pesticides on leaf surfaces using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry imaging technology. Taking fungicide metrafenone as a representative, we initially screened seven commonly used matrices, and identifying α-cyano-4-hydroxycinnamic acid as the most effective one in positive mode. …”
Get full text

Highly-sensitive quantification of carbamazepine and identification of its degradation and metabolism products in human liver by high performance liquid chromatography – High resolution mass spectrometry by Andrei Pirogov, Ekaterina Shirokova, Samvel Barsegyan, Nikita Gandlevskiy, Valeriya Akimova, Alessandro Barge, Aleksander Nosyrev

“…A method for the qualitative and quantitative determination of carbamazepine in human post mortem liver tissues using high-performance liquid chromatography coupled with high-resolution mass spectrometry has been developed. Validation has been carried out and the main analytical characteristics of the developed method have been determined. …”
Get full text

Development of a novel strategy for the quantification of ultra-trace impurity elements in high-purity magnesium using inductively coupled plasma tandem mass spectrometry by Liang Fu, Guangsheng Huang, Yaobo Hu, Xianhua Chen, Jingfeng Wang, Fusheng Pan

“…In this paper, based on the synergistic effect of N2O/H2 reaction gas mixture to eliminate spectral interference of inductively coupled plasma tandem mass spectrometry (ICP-MS/MS), a new strategy for the quantification of 45 ultra-trace impurity elements in high-purity magnesium was proposed. …”
Get full text

Gradual Optimization of Headspace Solid-Phase Microextraction Conditions of Volatiles in Pepper Chicken Soup Combined with Gas Chromatography-Mass Spectrometry and Principal Component Analysis by Qiuyue Geng, Ping Zhan, Honglei Tian, Peng Wang, Haitao Chen

“…Gas chromatography-mass spectrometry (GC-MS) results showed that the four factors all have significant impact on the extraction effect of volatiles in pepper chicken soup. …”
Get full text

Rapid analysis of fifteen sulfonamide residues in pork and fish samples by automated on-line solid phase extraction coupled to liquid chromatography–tandem mass spectrometry by Junmei Ma, Sufang Fan, Lei Sun, Liangna He, Yan Zhang, Qiang Li

Subjects: “…Liquid chromatography–tandem mass spectrometry…”
Get full text

Rapid Screening of Volatile Organic Compounds from Aframomum danielli Seeds Using Headspace Solid Phase Microextraction Coupled to Gas Chromatography Mass Spectrometry by Mosotho J. George, Patrick B. Njobeh, Sefater Gbashi, Gabriel O. Adegoke, Ian A. Dubery, Ntakadzeni E. Madala

“…Herein we report on the rapid screening of VOCs from seeds of ripe Aframomum danielli (family, Zingiberaceae) using a polydimethylsiloxane fibre headspace solid phase microextraction coupled to a gas chromatography mass spectrometry (SPME-GC/MS) instrument. Portions of 0.25, 0.35, and 0.50 g of ground sample were weighed and extraction of volatile organic compounds (VOCs) was achieved using a 100 μm polydimethylsiloxane solid phase microextraction (PDMS SPME) fibre, with the equilibrium time of 40 minutes and extraction temperature of 50°C; the following compounds with their respective relative abundances were obtained as the top ten most abundant and annotated ones using NIST, Wiley, and Fragrances Libraries: eucalyptol (58%); β-pinene (22%); α-pinene (7.5%); α-terpineol (4%), α-terpinyl acetate (2%); α-bergamotene (1%); pinocarveol (0.39%); α-copaene (0.35%); caryophyllene (0.34); and β-bisabolene (0.31%). …”
Get full text

A comprehensive characterization biotransformation of chlorinated paraffin by human and carp liver microsomes via liquid chromatography-high-resolution mass spectrometry and screening algorithm by Liujun Chen, Caiming Tang, Zhiqiang Yu, Yanhong Zeng, Bixian Mai, Xiaojun Luo

Get full text

Exploring Chemical Basis of Toxicity Reduction for Processed Roots of Stellera chamaejasme L. Using Ultraperformance Liquid Chromatography–Triple Quadrupole Tandem Mass Spectrometry by Wei Yang, Xiaoli Ma, Ludi Wang, Mengmeng Wei, Shuyao Wang, Siyang Wu, Chen Kang, Yingfei Li

Get full text

Characterization and comparison of the aroma-active compounds on different grades of sesame-flavor Baijiu by headspace solid-phase microextraction and gas chromatography-olfactometry-mass spectrometry by Dan Qin, Jiawen Duan, Hehe Li, Fuping Zheng, Huan Cheng, Xingqian Ye, Baoguo Sun

“…This study investigated the aroma-active compounds and compared the differences of three different grades of sesame-flavor Baijiu by headspace solid-phase microextraction (HS-SPME) coupled with gas chromatography-olfactometry-mass spectrometry (GC-O-MS). A total of 54 aroma-active compounds were detected. …”
Get full text

Carboxylated Multiwalled Carbon Nanotubes as Dispersive Solid-Phase Extraction Sorbent to Determine Eighteen Polychlorinated Biphenyls in Vegetable Samples by Gas Chromatography-Mass Spectrometry by Tengfei Liu, Daifeng Yang, Jian Mao, Xueming Zhang, Minghui Dong

“…A simple, rapid, and reliable method based on dispersive solid-phase extraction (d-SPE) and gas chromatography-mass spectrometry (GC-MS) was developed for quantitating polychlorinated biphenyls (PCBs) in vegetable samples. …”
Get full text

Simultaneous Quantification of Six Bioactive Components in Decoction of Ziziphi spinosae Semen Using Ultrahigh Performance Liquid Chromatography Coupled with Triple-Quadrupole Mass Spectrometry by Xiao Liu, Xiaochai Zhu, Hui Zhu, Li Xie, Jia Ma, Yinghui Xu, Qigang Zhou, Zejun Wu, Baochang Cai

“…This paper was conducted to develop a method containing ultrahigh performance liquid chromatography coupled with triple-quadrupole tandem mass spectrometry for simultaneous quantification of six bioactive components in the decoction of Ziziphi spinosae Semen. …”
Get full text

A Sensitive and Selective Method for Determination of Aesculin in Cortex Fraxini by Liquid Chromatography Quadrupole Time-of-Flight Tandem Mass Spectrometry and Application in Pharmacokinetic Study by Yi Li, Hui Guo, Yinying Wu, Qianqian Geng, Danfeng Dong, Huili Wu, Enxiao Li

Get full text

Study of Ultrasound-Assisted Low-Pressure Closed Acid Digestion Method for Trace Element Determination in Rock Samples by Inductively Coupled Plasma Mass Spectrometry by Xijuan Tan, Yunxiu Ren, Ting Liang, Denghong Wang

“…In this paper, a method of ultrasound-assisted low-pressure closed acid digestion followed by inductively coupled plasma mass spectrometry (ICP-MS) analysis was proposed for trace element quantification in rock samples. …”
Get full text

Rapid screening of 420 pesticide residues in fruits and vegetables using ultra high performance liquid chromatography combined with quadrupole-time of flight mass spectrometry by Junmei Ma, Sufang Fan, Liqiong Yang, Liangna He, Hongwen Zhai, Xiaowei Ren, Qiang Li, Yan Zhang

“…A new method for screening and identification 420 pesticide residues in fruits and vegetables by ultra-performance liquid chromatography coupled with quadrupole-time of flight mass spectrometry (UPLC-Q-TOF/MS) were developed. The samples were extracted with acetonitrile/acetic acid (99:1, V/V), and clean-up by SinChERS-Nano (single-step, cheap, effective, rugged, safe, nano) column, determined by UPLC-Q-TOF/MS. …”
Get full text

A liquid chromatography-high-resolution mass spectrometry method for separation and identification of hemoglobin variant subunits with mass shifts less than 1 Da by Ainslie Chen, Ryan M. Aquino, Hector A. Vidal, Carolyn V. Wong, Ruben Y. Luo

“…Journal of Mass Spectrometry and Advances in the Clinical Lab…”
Get full text