查詢結果分析
相關文獻
- Cloning of Mercury Resistance Determinants in Escherichia coli and Analysis of Mercury Reduction Activity in vivo and in vitro
- 中藥製劑基準方重金屬限量規格制訂之研究
- 中藥(材)中微量元素之檢驗方法及規格研訂4.--礦物中藥(材)中微量元素(銅、汞、鎘、鉛、砷、鈷、錳)檢驗方法及規格研訂之研究
- 碘化汞之晶體成長與物性量測的研究
- Determination of Mercury in Cosmetics on Electropolmerized Film-Modified Electrodes
- 市售面霜類化粧品汞鹽之品質調查
- 以原子吸光法測定魚貝類之汞含量
- Determination of Mercury in Urine and Seawater by Flow Injection Vapor Generation Isotope Dilution Inductively Coupled Plasma Mass Spectrometry
- Review of Biocompatibility of Dental Amalgam
- 以微波消化法與汞原子螢光光譜儀測定食品中汞含量方法之探討
頁籤選單縮合
題名 | Determination of Mercury in Urine and Seawater by Flow Injection Vapor Generation Isotope Dilution Inductively Coupled Plasma Mass Spectrometry= |
---|---|
作者 | 魏明財; 江旭禎; Wei, Ming-tsai; Jiang, Shiuh-jen; |
期刊 | Journal of the Chinese Chemical Society |
出版日期 | 19991200 |
卷期 | 46:6 1999.12[民88.12] |
頁次 | 頁871-877 |
分類號 | 345.39 |
語文 | eng |
關鍵詞 | 汞; Inductively coupled plasma mass spectrometer; Mercury; Flow injection; Vapor generation; Isotope dilution; Urine and seawater sample; |
英文摘要 | A simple and inexpensive laboratory-built vapor generator was used with inductively coupled plasma mass spectrometry (ICP-MS) for the determination of mercury in urine and seawater samples. The applications of vapor generation ICP- MS alleviated the non-spectroscopic interferences and the sensitivity problem of mercury determination encountered when the conventional pneumatic nebulizer was used for sample introduction. The concentration of mercury was determined by isotope dilution method. The isotope ratio of mercury was calculated from the peak areas of each injection peak. The repeatability of the peak areas and isotope ratio determinations of seven consecutive injections of 1 ng mL□Hg solution were 2.3% and 2.2%, respectively. This method has a detection limit of 0.07 ng mL□ for mercury. This method was applied to determine mercury in a CASS-3 nearshore seawater reference sample, NASS-4 open ocean seawater reference sample, NIST SRM 2670 freeze-dried urine reference sample and several urine and seawater samples collected from National Sun Yat-Sen University. The results for the reference samples agreed satisfactorily with the reference values. Results for other samples analyzed by the isotope dilution method and the method of standard additions agreed satisfactorily. Precision was better than 10% for most of the determinations. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。