Comparative Investigation of the Spectroscopic Behavior Based on High-Concentrated Solution in Nitrogen and Air Atmospheres.

ABSTRACT: In order to accurately obtain photometric information of high concentration SO₄^2- and other substances in the process industry, the spectroscopy behavior of SO₄^2-, S^2-, Ni²⁺ and Cu²⁺ in air and nitrogen atmosphere was compared based on the UV-visible spectrophotometer with a nitrogen replacing the oxygen. Different from Ni²⁺ and Cu²⁺, the accuracy of SO₄^2- and S^2- in the ultraviolet region was effectively improved by using a nitrogen atmosphere (P detection results were regressed within the limited standard range, RE < 5%). The nitrogen atmosphere suppressed the additional light attenuation caused by its absorption of ultraviolet rays by isolating oxygen and w

SUBMITTER: Zhang X 

PROVIDER: S-EPMC10454424 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature