Determination of osmium by inductively coupled plasma emission spectrometry with an oxide generation/condensation system

Abstract

ACKNOWLEDGMENTWe thank J. William Gurley (for design of the laser synchronization circuitry), Brian F. MacDonald (for a linear regression analysis computer program), and Priscilla J. Gannicott (for participating in the probe-laser experiments). 3588. Gedanken, A.; Robin, M. B.; Kuebler, N. A. J . Phys. Chem. 1982, 86, 4096. Rodgers, M. 0.; Asai, K.; Davis, D. D. Appl. Opt. 1980, 19, 3597. Wehry, E. L.; Hohmann, R.; Gates, J. K.; Guilbault, L. F.; Johnson, P, M.; Schendel, J. S.; Radspinner, D. A.

High-efficiency photooxidation vapor generation of osmium for determination by inductively coupled plasma-optical emission spectrometry

“…Chemical vapor generation (CVG) is a widely used sample introduction method for trace element determination due to its high transport efficiency, effective matrix separation, simple operation and low-cost. [1][2][3][4][5][6][7][8][9] Several approaches are available in traditional CVG, including hydride generation (HG), 10,11 cold vapor generation, 12,13 alkylation, 14 oxidation, 15,16 halide generation, 17 and metal-carbonyl generation, 18 etc. These CVG techniques offer the advantage of high sensitivity, ease of implementation, and short analysis time.…”

“…The volatility (boiling point: 130 C) of osmium tetraoxide has long been used to separate osmium from a matrix for analytical practices. 15,[28][29][30][31][32][33][34][35][36][37][38] In these studies, the generation of volatile osmium tetraoxide is usually achieved by using a large amount of strong oxidizing agents, such as HNO 3 , 32,37 H 2 O 2 , 31 H 5 IO 6 28,32,33 and K 2 Cr 2 O 7 . 15 In our previous study, we have realized the generation of osmium tetraoxide without any oxidant based on a novel solution cathode glow discharge (SCGD) induced vapor generation method.…”

“…15,[28][29][30][31][32][33][34][35][36][37][38] In these studies, the generation of volatile osmium tetraoxide is usually achieved by using a large amount of strong oxidizing agents, such as HNO 3 , 32,37 H 2 O 2 , 31 H 5 IO 6 28,32,33 and K 2 Cr 2 O 7 . 15 In our previous study, we have realized the generation of osmium tetraoxide without any oxidant based on a novel solution cathode glow discharge (SCGD) induced vapor generation method. 39 Efficient osmium vapor generation was achieved by the SCGD plasma produced oxidizing species.…”

GC-MS exploration of photochemically generated species of Os, W and Ru from reductive and oxidative media

“…Apart from the pioneering work of Summerhays et al , 29 as well as contemporary work of Bazan, 30 Russ et al 31 and Tao et al , 32 more recent studies of vapor generation of a volatile Os species for enhanced sample introduction for atomic spectroscopic detection have continued to utilize classical wet chemical oxidation reactions based on such reagents as K 2 Cr 2 O 7 , H 5 IO 6 , H 2 O 2 and HNO 3 . 33–35 Noteworthy, however, is that the volatile product has, to the best of our knowledge, never been categorically identified, but rather consistently assumed to be OsO 4 .…”

Ultra-trace determination of cadmium by vapour generation atomic fluorescence spectrometry

“…~ using reductants such as Sn" or sodium tetrahydroborate, the determination of boron by the formation of methyl borate$ and the generation of volatile osmium tetroxide via oxidative routes. 6 Cold vapour mercury determination is probably the single most widely used vapour generation technique.…”