Abstract

The indirect determination of phosphate, silicate, and arsenate is performed by separation of their heteropoly acids by using ion-pair reverse-phase HPLC (IP-RPHPLC) and monitoring the molybdenum emission from a DCP with an echelle spectrometer and a charge-injection device (CID) detector. Limits of detection found for phosphate, silicate, and arsenate are 26, 31, and 52 ng/mL, respectively. The detection limit for arsenate is slightly degraded due to its proximity to the excess molybdate peak. These results represent an improvement in the determination for these nonmetals over results for direct aspiration into an emission source and show excellent linearity over three orders of magnitude.

Ultraviolet Transmission of Dihydrogen Arsenate and Phosphate Crystals*

Warren J. Deshotels
J. Opt. Soc. Am. 50(9) 865-865 (1960)

Linear Electro-Optic Effects in Tetragonal Phosphates and Arsenates

R. S. Adhav
J. Opt. Soc. Am. 59(4) 414-418 (1969)

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)

Time dependent study of femtosecond laser written waveguide lasers in Yb-doped silicate and phosphate glass

Yuwen Duan, Peter Dekker, Martin Ams, Guido Palmer, and Michael J. Withford
Opt. Mater. Express 5(2) 416-422 (2015)

Sensitive determination of DNA based on phosphate-dye interaction using photothermal lens technique

Nader Shokoufi, Behnaz Abbasgholi Nejad Asbaghi, and Shafigh Nouri Hajibaba
Appl. Opt. 58(12) 3074-3082 (2019)