Potassium Bromate Assay by Redox Titrimetry Using Arsenic Trioxide

机译：三氧化二砷氧化还原滴定法测定溴酸钾

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Bromate, a disinfectant, is one of the analytes of interest in wastewater analysis. Environmental laboratories have a regulatory need for their measurements to be traceable to NIST standards. Bromate is not currently certified as a NIST Standard Reference Material (SRM). Therefore, a traceable assay of potassium bromate (KBrO3) is needed.KBrO3 was dissolved in water and assayed by redox titrimetry using arsenic trioxide (As2O3). A nominal (0.1 g) sample of As2O3 was dissolved in 10 mL of 5 mol/L sodium hydroxide. The solution was acidified with hydrochloric acid and about 95 % of the KBrO3 titrant was added gravimetrically. The end point was determined by addition of dilute (1:3) titrant using an automated titrator. The KBrO3 assay was determined to be 99.76 % ± 0.20 %. The expanded uncertainty considered the titrations of three independently prepared KBrO3 solutions.

机译：溴酸盐是一种消毒剂，是废水分析中感兴趣的分析物之一。环境实验室对其测量可追溯到NIST标准有监管要求。 Bromate目前尚未获得NIST标准参考材料（SRM）的认证。因此，需要对溴酸钾（KBrO3）进行可追溯的测定。将KBrO3溶解在水中，然后使用三氧化二砷（As2O3）通过氧化还原滴定法进行测定。将标称（0.1 g）的As2O3样品溶解在10 mL的5 mol / L氢氧化钠中。用盐酸酸化该溶液，并以重量法加入约95％的KBrO3滴定剂。通过使用自动滴定仪添加稀释（1：3）滴定剂来确定终点。经测定，KBrO3测定值为99.76％±0.20％。扩大的不确定度考虑了三种独立制备的KBrO3溶液的滴定度。

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期刊名称 Journal of Research of the National Institute of Standards and Technology
作者
Johanna M. Smeller; Stefan D. Leigh;
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年(卷),期 2003(108),1
年度 2003
页码 49–55
总页数 7
原文格式 PDF
正文语种
中图分类
关键词
arsenic trioxide potassium bromate redox titration;

机译：三氧化二砷;溴酸钾;氧化还原滴定;

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1. Potassium Bromate Assay by Redox Titrimetry Using Arsenic Trioxide [J] . Johanna M. Smeller, Stefan D. Leigh Journal of Research of the National Institute of Standards and Technology . 2003,第1期

机译：三氧化二砷氧化还原滴定法测定溴酸钾
2. ESTIMATION OF ARSENIC(III) IN ORGANIC ARSINES AND ITS COMPLEXES USING POTASSIUM BROMATE AND POTASSIUM IODATE AS OXIDANTS [J] . SHARMA ANU, SHARMA GAURAV, NAUSHAD MU, Journal of the Chilean Chemical Society . 2016,第2期

机译：溴酸钾和碘酸钾作为氧化剂估算有机砷及其络合物中的砷
3. Antimony-trioxide- and arsenic-trioxide-induced apoptosis in myelogenic and lymphatic cell lines, recruitment of caspases, and loss of mitochondrial membrane potential are enhanced by modulators of the cellular glutathione redox system. [J] . Annals of hematology . 2009,第11期

机译：细胞谷胱甘肽氧化还原系统的调节剂增强了三氧化二锑和三氧化二砷诱导的骨髓和淋巴细胞系细胞凋亡，胱天蛋白酶的募集和线粒体膜电位的丧失。
4. Synthesis of Carboxymethylcellulose-g-Acylamide Using Ferrous Sulphate/Potassium Bromate Redox Pair [C] . Kunj Behari, Rajesh Kumar American Chemical Society Division of Polymeric Materials:Science and Engineering Meeting . 2001

机译：使用硫酸亚铁/溴酸钾氧化还原对羧甲基纤维素-G-酰胺的合成
5. Characterization of the novel arsenical darinaparsin (ZIO-101, S-dimethylarsino-glutathione) as a more potent inducer of oxidative stress and apoptosis than arsenic trioxide in acute promyelocytic leukemia. [D] . Kourelis, Maria. 2009

机译：在急性早幼粒细胞白血病中，新型砷化降火药（ZIO-101，S-二甲基ar-谷胱甘肽）比三氧化二砷更有效地诱导氧化应激和细胞凋亡。
6. Nigella sativa fixed and essential oil modulates glutathione redox enzymes in potassium bromate induced oxidative stress [O] . Muhammad Tauseef Sultan, Masood Sadiq Butt, Roselina Karim, 2015

机译：Nigella sativa固定油和精油调节溴酸钾诱导的氧化应激中的谷胱甘肽氧化还原酶
7. Antimony-trioxide- and arsenic-trioxide-induced apoptosis in myelogenic and lymphatic cell lines, recruitment of caspases, and loss of mitochondrial membrane potential are enhanced by modulators of the cellular glutathione redox system [O] . Lösler, Susan, Schlief, Sarah, Kneifel, Christiane, 2009

机译：细胞谷胱甘肽氧化还原系统的调节剂可增强三氧化二锑和三氧化二砷诱导的骨髓和淋巴细胞系凋亡，胱天蛋白酶的募集以及线粒体膜电位的丧失。

Potassium Bromate Assay by Redox Titrimetry Using Arsenic Trioxide

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