| 斜坡升温平台石墨炉法直接测葡萄酒中铅 |
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| 引用本文： | 孙玉岭,卢燕.斜坡升温平台石墨炉法直接测葡萄酒中铅[J].理化检验(化学分册),1999,35(12):542-543,545. |
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| 作者姓名： | 孙玉岭 卢燕 |
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| 作者单位： | 大连进口食品卫生监督检验中心，大连进口食品卫生监督检验中心，大连进口食品卫生监督检验中心，大连进口食品卫生监督检验中心，大连医科大学卫生教研室 大连116001，大连116001，大连116001，大连116001 |
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| 摘 要： | 研究了石墨炉法直接测定葡萄酒中铅的测定方法，以磷酸二氢氨－硝酸镁作基体改进剂，采用多步斜坡升温，恒温平台石墨炉技术测定了四个国家８种类别的葡萄酒中微量铅，回收率９６．０％～１０３．５％，ＲＳＤ３．２％，并采用国家标准物质ＧＢＷ０８５０３小麦粉制成悬浮液，验证了方法的准确度与重现性，结果满意。
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| 关 键 词： | 铅 恒温平台石墨炉 葡萄酒 斜坡升温 测定 |
DIRECT STPF-GFAAS DETERMINATION OF TRACE OF LEAD IN GRAPE WITH BY THE STEPS TEMPRETURE ELEVATION PROCEDURE |
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| Sun Yuling,Lu Yan,Wei Feng,Wang Yuping and Zhang Xianli.DIRECT STPF-GFAAS DETERMINATION OF TRACE OF LEAD IN GRAPE WITH BY THE STEPS TEMPRETURE ELEVATION PROCEDURE[J].Physical Testing and Chemical Analysis Part B:Chemical Analgsis,1999,35(12):542-543,545. |
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| Authors: | Sun Yuling Lu Yan Wei Feng Wang Yuping and Zhang Xianli |
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| Abstract: | A method of direct GFAAS determination of trace amount of lead in grape wine is described in this paper. The step-ramp-temperature elevating and STPF techniques are tested and used in the determination. Ammonium dihydrogen phosphate (lOg ?L~(-1)) and magnesium nitrate (9. 6g ?L~(-1)) are used as matrix modifier. Various kinds of grape wine were analyzed by the proposed method. A recovery of 96%~103% and a RSD of less than 3. 2 % were obtained. |
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| Keywords: | Lead GFAAS STPF Grape wine Step-ramp-temperature elevation |
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