Abstract: Abstract—Procedures for the determination of 53 impurities, including rare earth elements, in boric acid by inductively coupled plasma optical emission spectrometry (ICP–OES) have been developed. To optimize analysis conditions, the variation of impurity element signals was studied at boron concentrations ranging from 0 to 5000 mg/L and plasma powers of 1000, 1300, and 1600 W under axial observation. Most impurity elements exhibited the maximum analytical signals at the highest plasma power and at the highest boron concentration in the test solution. Taking into account the significant effect of the matrix on impurity element signals starting from approximately 500 mg/L of the matrix element, calibration curves were constructed using the spike method. The accuracy of the analysis was confirmed by spiking with the analyte elements with recoveries of 85–115%. The limits of detection calculated by the 2s test ranged from n × 10–7 to n × 10–4 wt %.

Cite: Nagornaya S.I. , Polyakova E.V. , Nikolaev R.E.
Determination of the Impurity Composition of Boric Acid by Inductively Coupled Plasma Optical Emission Spectrometry
Journal of Analytical Chemistry. 2025. V.80. N10. P.1771-1778. DOI: 10.1134/S1061934825700935 WOS

Original: Нагорная С.И. , Полякова Е.В. , Николаев Р.Е.
ОПРЕДЕЛЕНИЕ ПРИМЕСНОГО СОСТАВА БОРНОЙ КИСЛОТЫ МЕТОДОМ АТОМНО-ЭМИССИОННОЙ СПЕКТРОМЕТРИИ С ИНДУКТИВНО СВЯЗАННОЙ ПЛАЗМОЙ
Журнал аналитической химии. 2025. Т.80. №10. С.1100-1107. DOI: 10.7868/S3034512X25100096

Dates:

Submitted:	Oct 14, 2024
Accepted:	Apr 29, 2025
Published print:	Oct 31, 2025

Identifiers:

Web of science:

WOS:001599889300007

Citing: Пока нет цитирований

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