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Optimization of Determination of CO32- and HCO3- in Boron-Containing Brine
Chen Jing1,2,4; Peng Jiao-yu1,2; Bian Shao-ju1,3; Gao Dan-dan1,3; Dong Ya-ping1,2; Li Wu1,3
2018-07-01
发表期刊SPECTROSCOPY AND SPECTRAL ANALYSIS
卷号38期号:7页码:2194-2199
文章类型Article
摘要Basingthe titration to analyze the total boron, total alkalinity and made references to the determination of serum bicarbonate, we have developed a new method by combining UV spectrophotometry and titration to determine CO(3)(2-)and HCO3- values accurately in boron-containing brine. The effects of spectrophotometric reaction were studied by analyzing the wavelength, the dosage of chromogenic reagent, temperature and pH, choosing phonel red as chromogenic reagent. The further research was studied by analyzing the linearity between the absorbance and the concentration, the detection limitation, the recovery rate and so on. The results showed that the maximum absorbance peak is at 558 nm. There was a good linear relationship in the ranges of 0 similar to 10. 0 mmolL(-1), correlation coefficient R-2 = 0. 999 8. The detection limitation is 2. 53 X 10(-3) mmol . L-1. The recoveries ranges from 97. 75% to 101. 76%. The relative standard devivation (RSD) is in the range of 1. 67%similar to-1. 95%. The dosage of chromogenic reagent was 1. 0 mL. The room temperature was suitable and pH is 8. 4. The proposed method is of high accuracy and precision. This method optimized the determination of CO32- and HCO3- in boron-containing brine. The new method provides a new idea and experimental method for the basic research and practical application of brine, has potential to be applied in fundamental research and process development of brine.
关键词Spectrophotometry Titration Carbonate Bicarbonate
WOS标题词Science & Technology ; Technology
关键词[WOS]DISSOLVED INORGANIC CARBON ; ALKALINITY ; WATER
收录类别SCI
语种英语
WOS研究方向Spectroscopy
WOS类目Spectroscopy
WOS记录号WOS:000439671600033
出版者OFFICE SPECTROSCOPY & SPECTRAL ANALYSIS
引用统计
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/6681
专题盐湖资源综合利用工程技术中心
通讯作者Dong Ya-ping
作者单位1.Chinese Acad Sci, Qinghai Inst Salt Lake, Key Lab Comprehens & Highly Efficient Utilizat Sa, Xining 810008, Qinghai, Peoples R China
2.Qinghai Engn & Technol Res Ctr Comprehens Utiliza, Xining 810008, Qinghai, Peoples R China
3.Key Lab Salt Lake Geol & Environm Qinghai Prov, Xining 810008, Qinghai, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Chen Jing,Peng Jiao-yu,Bian Shao-ju,et al. Optimization of Determination of CO32- and HCO3- in Boron-Containing Brine[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2018,38(7):2194-2199.
APA Chen Jing,Peng Jiao-yu,Bian Shao-ju,Gao Dan-dan,Dong Ya-ping,&Li Wu.(2018).Optimization of Determination of CO32- and HCO3- in Boron-Containing Brine.SPECTROSCOPY AND SPECTRAL ANALYSIS,38(7),2194-2199.
MLA Chen Jing,et al."Optimization of Determination of CO32- and HCO3- in Boron-Containing Brine".SPECTROSCOPY AND SPECTRAL ANALYSIS 38.7(2018):2194-2199.
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