scholarly journals Comparative oxidation state specific analysis of arsenic species by high-performance liquid chromatography-inductively coupled plasma-mass spectrometry and hydride generation-cryotrapping-atomic absorption spectrometry

2013 ◽  
Vol 28 (6) ◽  
pp. 843 ◽  
Author(s):  
Jenna M. Currier ◽  
R. Jesse Saunders ◽  
Lan Ding ◽  
Wanda Bodnar ◽  
Peter Cable ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
High Performance Liquid Chromatography ◽  
Inductively Coupled Plasma ◽  
High Performance ◽  
Hydride Generation ◽  
Absorption Spectrometry ◽  
Arsenic Species ◽  
Inductively Coupled ◽  
Specific Analysis ◽  
Plasma Mass Spectrometry

scholarly journals Arsenic Species Analysis at Trace Level by High Performance Liquid Chromatography with Inductively Coupled Plasma Mass Spectrometry

2019 ◽  
Vol 2019 ◽  
pp. 1-6 ◽  
Author(s):  
Hongfang Hou ◽  
Wanjing Cui ◽  
Qing Xu ◽  
Zhanhui Tao ◽  
Yafei Guo ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Inductively Coupled Plasma ◽  
Mobile Phase ◽  
High Performance ◽  
Arsenic Species ◽  
Dimethylarsinic Acid ◽  
Inductively Coupled ◽  
Plasma Mass Spectrometry

A sensitive and accurate simultaneous continuous analysis for six arsenic species including arsenobetaine (AsB), arsenocholine (AsC), monomethylarsonic acid (MMA), dimethylarsinic acid (DMA), arsenite (AsIII), and arsenate (AsV) has been developed by high performance liquid chromatography with inductively coupled plasma mass spectrometry (HPLC-ICP-MS). An anion-exchange column of Hamilton PRP-X100 (Switzerland) was applied for separation of the six arsenic species with gradient elution of 1.25 mmol/L Na2HPO4 and 11.0 mmol/L KH2PO4 as the mobile phase A and 2.5 mmol/L Na2HPO4 and 22.0 mmol/L KH2PO4 as the mobile phase B. The linearity ranges for AsB, AsC, MMA, DMA, AsIII, and AsV were between 0.5 and 50.0 μg/L, and the detection limits of the six arsenic species were all within 0.01–0.35 ng/L. The relative standard deviations (RSDs) were within 2.26–3.68% and the recovery rates of samples ranged from 95 to 103%. The proposed method was applied for the arsenic speciation analysis of sediment pore-water samples, which were taken from the supernatant after centrifugation and filtration.

scholarly journals Characterization of Arsenic Biotransformation Products from an Open Anaerobic Degradation of Fucus distichus by Hydride Generation Gas Chromatography Atomic Absorption Spectrometry and High Performance Liquid Chromatography Inductively Coupled Plasma Mass Spectrometry

2013 ◽  
Vol 2013 ◽  
pp. 1-6
Author(s):  
Abiodun A. Ojo ◽  
Amos Onasanya
Keyword(s):  
Inductively Coupled Plasma ◽  
High Performance ◽  
Hydride Generation ◽  
Absorption Spectrometry ◽  
Arsenic Species ◽  
Water Soluble ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Biotransformation Products

This work reports on the isolation and determination of biotransformation products obtained from the organoarsenic compounds that are present in Fucus distichus when it was subjected to an open anaerobic decomposition by using the Hydride Generation Gas Chromatography Atomic Absorption Spectrometry (HG-GC-AAS) and High Performance Liquid Chromatography Inductively Coupled Plasma Mass Spectrometry (HPLC-ICP-MS). The seaweed and filtrate residues obtained from the open anaerobic degradation procedure were extracted in methanol and partitioned in phenol-ether-water mixtures to obtain water soluble extracts. The water soluble extracts were cleaned up and separated on a gel permeation Sephadex G15 column. Arsenic species concentrations were determined by using HG-GC-AAS. Final characterization of the biotransformation isolates was carried out on HPLC-ICP-MS. Only two arsenic species, 2-dimethylarsinoyl ethanol (DMAE) and dimethylarsinic acid (DMAA), were positively identified in the water soluble extract of the marine brown algae. The two arsenic species are strong intermediate candidates in the biosynthesis of arsenobetaine from oceanic arsenate in marine food webs.

Sign in / Sign up

Export Citation Format

Share Document