Application of direct analysis in real time to study chemical vapor generation mechanisms: reduction of dimethylarsinic(V) acid with aqueous NaBH4 under non-analytical conditions

Atomic spectrometry update: review of advances in atomic spectrometry and related techniques

“…in the absence of dissolved analyte) using SP-ICP-MS. For each plasma, the selected operating conditions provided a compromise in sensitivity for multielemental analysis. An Ar plasma was found to provide signicantly lower LOD (size) than the mixed-gas plasmas, except for 33 S, 31 P, and 44 Ca, where oxygen scavenging by N 2 within the Ar-N 2 plasma signicantly improved the measured LOD (size). With the Ar-N 2 -H 2 plasma, an accompanying loss of sensitivity largely negated the LOD (size) improvement from oxygen scavenging.…”

“…Chemical vapour generation (CVG) has been applied for a long time, but the mechanisms are still not fully understood. Pagliano et al 31 investigated the mechanism of reduction of dimethylarsinic acid (DMA) with aqueous NaBH 4 under non-analytical conditions, i.e. 1000 μg mL −1 As.…”

Applications of ambient ionization mass spectrometry in 2020: An annual review

“…Pagliano et al used DART‐HRMS for the real‐time study of mechanisms of chemical vapor generation 130 . In comparison with analysis by GC‐MS, DART‐MS was able to detect a number of species not detected by traditional techniques, demonstrating ambient techniques are not only capable of significantly faster analysis, but also identifying previously undetected analytes.…”

Sensitive online speciation analysis of arsenic in biological samples by ambient mass spectrometry

“…hydride generation (HG), solid-phase microextraction) [6][7][8][9][10] separation coupled to a sensitive detector (AFS, AAS, ICP-MS, Orbitrap MS). 7,11,12 However, tedious sample preparation and multistep extraction of As analytes were normally compulsory when using conventional analytical techniques. As a redox-sensitive element, great efforts need to be made for developing extraction procedures and preservation methods for As, because instability and interconversion of As species may occur during these procedures.…”