Barium Determination of Si-Ca-Ba Alloy by Spectrophotometry with Tribromoarsenazo AITranslate
Abstract AITranslate
The chromogenic reaction between tribromoarsenazo and barium was studied as well as the influ- ences of coexistent ions on the reaction. The results show that barium reacts with the chromogenic reagent in 0.3 mol/L H3PO4 solution to form a stable purple complex,which exhibits an absorption maximum at 618 nm with an apparent molar absorptivity of 3.90 × 104 L/（mol cm）. Beer＇s law is obeyed with the barium content of 0-40 μg/25 mL. The chromogenic reaction is of high sensitivity and the speetrophotometry can be used to determine the barium content of Si-Ca-Ba alloy. The determined results are in agreement with the certified values, and the relative standard deviation （RSD） is less than 2%.
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DOI：
Chinese Library Classification Number:O657.32[理学—分析化学]
Citation Information:
The chromogenic reaction between tribromoarsenazo and barium was studied as well as the influ- ences of coexistent ions on the reaction. The results show that barium reacts with the chromogenic reagent in 0.3 mol/L H3PO4 solution to form a stable purple complex,which exhibits an absorption maximum at 618 nm with an apparent molar absorptivity of 3.90 × 104 L/（mol cm）. Beer＇s law is obeyed with the barium content of 0-40 μg/25 mL. The chromogenic reaction is of high sensitivity and the speetrophotometry can be used to determine the barium content of Si-Ca-Ba alloy. The determined results are in agreement with the certified values, and the relative standard deviation （RSD） is less than 2%.
quote
| GB/T 7714-2015 | [1] ZHONG Guo-xiu, YANG Hao-yi, HUANG Qing-hua, et al. Barium Determination of Si-Ca-Ba Alloy by Spectrophotometry with Tribromoarsenazo[J]. Rare Metals and Cemented Carbides, 2010(1): 44-46. |
| MLA | [1] ZHONG Guo-xiu, et al., "Barium Determination of Si-Ca-Ba Alloy by Spectrophotometry with Tribromoarsenazo." Rare Metals and Cemented Carbides, no. 1, 2010, pp. 44-46. |
| APA | [1] ZHONG Guo-xiu, YANG Hao-yi, HUANG Qing-hua, & LU Fan. (2010). Barium Determination of Si-Ca-Ba Alloy by Spectrophotometry with Tribromoarsenazo. Rare Metals and Cemented Carbides(1), 44-46. |
| IEEE | [1] ZHONG Guo-xiu, YANG Hao-yi, HUANG Qing-hua, and LU Fan, "Barium Determination of Si-Ca-Ba Alloy by Spectrophotometry with Tribromoarsenazo," Rare Metals and Cemented Carbides, no. 1, pp. 44-46, 2010. keywords: {tribromoarsenazo;spectrophotometry;Si-Ca-Ba alloy;barium content} |