分光光度法测定工业废水中的汞

基金项目:

黑龙江省科技厅归国留学资助项目(LC201008)

Spectrophotometric Determination of Mercurry in Industrial Sewage

1.
College of Chemistry and Chemical Engineering,Qiqihar University,Qiqihar 161006,China
2.
College of Environmental and Chemical Engineering,Yanshan Univercity,Yanshan 066004,China

摘要: 在β-环糊精和聚乙烯醇存在下,在盐酸介质中基于汞-硫氰酸盐-罗丹明B的显色反应,采用分光光度法测定汞.配合物的最大吸收波长为580 nm,表观摩尔吸光系数为4.97×105L.mol-1.cm-1,汞含量在0.03～0.4 mg/L范围内服从比尔定律,线性回归方程:A=0.092ρ+0.007 1,相关系数r=0.998 4.此方法已用于工业废水中微量汞的测定,结果令人满意
- 分光光度法 /
- 汞 /
- β-环糊精 /
- 聚乙烯醇 /
- 硫氰酸钾 /
- 罗丹明B
Abstract: The spetrophotometry analytical method of mercurry was developed based on the colour reaction of Hg(Ⅱ)-SCN——RhB system in the presence of β-cyclodextrin and polyvinyl alcohol in the medium of hydroloric acid.The maximum absorbance is at 580 nm with apparent molar absorption of 4.97 × 105 L·mol-1·cm-1.The beer’s law is obeyed in the range of 0.03~0.4 mg/L.The regression equation of calibration is A=0.092ρ + 0.007 1 with a correlation coefficient 0.988 4.The proposed method was used to determine t...
- spectrophotometry /
- mercurry /
- β-cyclodextrin /
- polyvinyl alcohol /
- KSCN /
- Rhodamine B

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