Spectroscopic diagnostics of axially viewed inductively coupled plasma and microwave induced plasma coupled to photochemical vapor generation with pneumatic nebulization inside a programmable temperature spray chamber

Abstract

ICP robustness increases with increasing programmable spray chamber temperature while MIP robustness decreases for the PCVG-PN-PTSC-ICP/MIP-OES technique.

Cobalt and Copper Ions Synergistically Enhanced Photochemical Vapor Generation of Molybdenum: Mechanism Study and Analysis of Water Samples

“…34 With respect to the homogeneous PCVG reactions, abundant reactive free radicals (e.g., • OH and Compelling advantages were obtained using PCVG sampling, especially the Co 2+ and Cu 2+ synergistically enhanced case. Theoretically, aerosols with varied water content, such as pneumatically generated wet aerosols 36 and dry aerosols obtained by desolvation, electrothermal vaporization (ETV), laser ablation (LA), or chemical vapor generation (CVG), 37,38 may exert a direct influence on the physical properties of an argon plasma (e.g., electron density, excitation temperature); hence, a true comparison of analytical performances between nebulization sampling and PCVG sampling will only be possible when changes in plasma conditions are excluded. Nevertheless, the improved sample introduction efficiency by PCVG as well as the changes in the physical properties of plasma could altogether be exploited in favor of the analytical figures of merit.…”

Multi-Objective Optimized Overlapping Peak Separation Algorithm for Simultaneous Detection of Copper and Cobalt by Ultraviolet-Visible Spectroscopy

“…The on-line detection process mainly includes sampling system, automatic sequential injection system and detection system, among them, the detection system is a key factor, which requires the detection instrument to have the characteristics of miniaturization, integration, and fast detection speed, so as to be suitable for online detection of multi-component substances in the industrial field. In recent years, there have been some methods for on-line determination of metal ions, such as polarography [17], potentiometric titration [18], laserinduced breakdown spectroscopy [19], ultraviolet-visible absorption spectroscopy [20], and inductively coupled plasma mass spectrometry [21]. Among them, ultraviolet-visible absorption spectroscopy is widely used in the field of analysis and detection for its advantages such as versatility, speed, simplicity, accuracy and low cost [22][23][24][25][26].…”