牛奶冻干粉中铬质控样品/GB 5009.268-2025 Cr quality control in milk lyophilized powder
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奶粉中铜质控样品/GB 5009.268-2025 Cu quality control in milk powder
BWS0466-2016 | 10g
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奶粉中汞质控样品/GB 5009.268-2016/GB 5009.268-2025 Hg quality control in milk powder
BWS0452-2016 | 30g
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奶粉中镉质控样品/GB 5009.268-2016/GB 5009.268-2025 Cd quality control in milk powder
BWS0413-2016 | 30g
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奶粉中铬、铜质控样品/GB 5009.268-2025 Cu, Cr in milk powder
SHAM_247377 | 20g
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奶粉中铬质控样品/GB 5009.123-2014 Chromium quality control in milk powder
BWS0102-2016 | 20g
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辣椒粉中铬质控样品/GB 5009.268-2025 Cr quality control in chili powder
BWS0405-2016 | 30g
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菠菜粉中铬质控样品/GB 5009.268-2025 Cr quality control in spinach powder
BWS0409-2016 | 30g
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2. 消解液定容过滤
3. 石墨炉程序升温优化(干燥/灰化/原子化温度)
4. 标准曲线与样品同步测定
5. 质控样每批次插入率≥10%
② 冻干粉复溶时需控制超纯水用量(水铬本底≤0.02 μg/L)
③ 标准物质应在有效期内使用且保存于-20℃
以上信息仅供参考,请以相应标准的原文为准!