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钆标准溶液,7440-54-2,1000μg/ml,in 1.0 mol/L HNO3
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氨氮标准溶液,500mg/L in H2O
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锆标准溶液,7440-67-7,1000μg/ml, in 1.0mol/L HNO3 and trace HF
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硒标准溶液,7782-49-2,100mg/L in water
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铷标准溶液,7440-17-7,analytical standard,1000μg/ml, in 1mol/L HNO3
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硒标准溶液,7782-49-2,100mg/L in 1%HCl
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硫 ICP 标准液 traceable to SRM from NIST H2SO4 in H2O 1000 mg/l S CertiPUR®
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铟标准溶液,7440-74-6,100mg/L (20℃) in 1%HCl
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氨氮标准溶液,100mg/L(as N ) in H2O
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亚硝酸盐标准溶液(以氮计),100mg/L in water
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