Abstract

A sample introduction method based on <i>in situ</i> solid-phase SiH₄ generation for ICP-AES has been proposed for the determination of silicate. The hydride generation procedure is as follows: An aqueous sample solution is dried on a sample cuvette, and LiAIH₄ solution is added onto the dehydrated sample and is dried again. The cuvette is then located on a tungsten boat furnace. Silane species are generated by heating the cuvette at 700°C, with the species introduced directly into the ICP to measure the atomic emission of Si. The amount of LiAIH₄, the reaction temperature, and the flow rate of the Ar carrier gas were optimized. The calibration curve was linear up to at least 100 ng of Si(IV) and the detection limit (signal-to-noise ratio of 3) was 0.03 ng. The relative standard deviation for 10 replicate measurements of 1.0 ng of Si(IV) was 2.7%. This method was applied to the determination of Si in river water with satisfactory results.

Optimized laser-induced breakdown spectroscopy for determination of xenobiotic silver in monosodium glutamate and its verification using ICP-AES

I. Rehan, M. A. Gondal, and K. Rehan
Appl. Opt. 57(12) 3191-3197 (2018)

Erbium doped GaN synthesized by hydride vapor-phase epitaxy

Dae-Woo Jeon, Zhenyu Sun, Jing Li, Jingyu Lin, and Hongxing Jiang
Opt. Mater. Express 5(3) 596-602 (2015)

Thermally poled silicate thin films with large second-harmonic generation

O. Sugihara, M. Nakanishi, H. Fujimura, C. Egami, and N. Okamoto
J. Opt. Soc. Am. B 15(1) 421-425 (1998)

Uniform liquid crystal alignment on metallic nanohole arrays by vapor-phase deposition of silane coupling agent

Hiroyuki Yoshida, Takayuki Matsui, Atsushi Miura, Naoki Ikeda, Masayuki Ochiai, Yoshimasa Sugimoto, Hisayoshi Fujikawa, and Masanori Ozaki
Opt. Mater. Express 2(7) 893-899 (2012)

Experimental determination of the upconversion rate in erbium-doped silicate glasses

Nikolai Nikonorov, Alexander Przhevuskii, Michael Prassas, and David Jacob
Appl. Opt. 38(30) 6284-6291 (1999)