Stabilization of organic and inorganic mercury in the graphite furnace with (NH4)(2)PdCl6-(NH4)(3)RhCl6 as a mixed chemical modifier
文献类型：期刊论文
| 作者 | De-Qiang, Z; Zhe-Ming, N; Han-Wen, S |
| 刊名 | SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
 |
| 出版日期 | 1998 |
| 卷号 | 53期号:2015-06-08页码:1049-1055 |
| 关键词 | graphite furnace AAS mercury (NH4)(2)PdCl6-(NH4)(3)RhCl6 chemical modifier mercury in cosmetics |
| 英文摘要 | The thermal stabilization characteristics of mercury species (inorganic and organic) in the presence of different chemical modifiers, including PdCl2 + ascorbic acid, (NH4)(2)PdCl6 + citric acid, (NH4)(3)RhCl6 + citric acid and a mixture of the last two salts, were investigated. The results indicate that PdCl2 + ascorbic acid can stabilize mercury species upto a temperature of 500 degrees C whereas, with the mixed (NH4)(2)PdCl6-(NH4)(3)RhCl6 modifier, mercury can withstand a pyrolysis temperature as high as 920 degrees C and can tolerate much higher concentration of interferents than with palladium or rhodium alone. The integrated absorbance for mercury was also much increased in the presence of the mixed modifier. The characteristic mass, which gives an integrated absorbance of 0.0044 s for mercury, is found to be 59 pg, and the absolute detection limit, based on the variability of the blank (3 sigma), is 38 pg. The proposed (NH4)(2)PdCl6-(NH4)(3)RhCl6 mixed modifier has been applied to the determination of low levels of mercury in cosmetics with a recovery range of 97%-103%. (C) 1998 Elsevier Science B.V. All rights reserved. |
| 研究领域[WOS] | Spectroscopy |
| WOS记录号 | WOS:000076502000022 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/24278]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | De-Qiang, Z,Zhe-Ming, N,Han-Wen, S. Stabilization of organic and inorganic mercury in the graphite furnace with (NH4)(2)PdCl6-(NH4)(3)RhCl6 as a mixed chemical modifier[J]. SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY,1998,53(2015-06-08):1049-1055. |
| APA | De-Qiang, Z,Zhe-Ming, N,&Han-Wen, S.(1998).Stabilization of organic and inorganic mercury in the graphite furnace with (NH4)(2)PdCl6-(NH4)(3)RhCl6 as a mixed chemical modifier.SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY,53(2015-06-08),1049-1055. |
| MLA | De-Qiang, Z,et al."Stabilization of organic and inorganic mercury in the graphite furnace with (NH4)(2)PdCl6-(NH4)(3)RhCl6 as a mixed chemical modifier".SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY 53.2015-06-08(1998):1049-1055. |
入库方式： OAI收割
来源：生态环境研究中心
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