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氨氮标准溶液,100mg/L(as N ) in H2O
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4种阴离子混标(氟离子、氯离子、硝酸盐氮、硫酸根),100μg/ml in H2O(uncertainty 2%)
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4种阴离子混标(氟离子、氯离子、硝酸盐氮、硫酸根),1000μg/ml in H2O(不确定度 1%)
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硝酸盐氮 标液标准品
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亚硝酸盐标准溶液(以氮计),100mg/L in water
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亚硝酸盐氮 标液标准品
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氨氮标准溶液,500mg/L in H2O
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硝酸盐 IC 标准液 1,000 mg/l traceable to SRM from NIST NaNO₃ in H₂O 1000 mg/l NO₃⁻ CertiPUR®
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fac-[Re(CO)3(L6)(H2O)][NO3] | MedChemExpress (MCE)
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fac-[Re(CO)3(L3)(H2O)][NO3] | MedChemExpress (MCE)
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