乳粉中锌和钾质控样品/GB 5009.268-2025 Zinc and potassium quality control in milk powder
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乳粉中锡质控样品/GB 5009.268-2025 Sn quality control in milk powder
SHAM_234033 | 10g
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乳粉中总汞质控样品/GB 5009.268-2025 Hg quality control in milk powder
BWS0454-2016 | 10g
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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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乳粉中10种成分质控样品/GB 5009.268-2025 10 ingredients quality control in milk powder
SHAM_234030 | 30g
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乳粉中总汞、总砷质控样品/GB 5009.268-2025 Hg,As quality control in milk powder
SHAM_234031 | 10g
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2. 仪器校准:用锌标准溶液绘制0-5 mg/L的标准曲线;
3. 上机测定:设置火焰原子化条件,记录吸光度并计算浓度。
2. 仪器参数:燃气流量设置为1.2 L/min,狭缝宽度0.2 nm;
3. 结果计算:采用标准加入法消除基质效应。
以上信息仅供参考,请以相应标准的原文为准!