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First Standard® 乙腈中14种醛酮DNPH混标溶液,20 µg /ml
14 Aldehyde/Ketone DNPH Mix Solution in Acetonitrile, 20μg/mLFirst Standard®天津
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First Standard® 乙腈中26种醛酮DNPH混标溶液-2,15 µg /ml
26 Aldehyde/Ketone DNPH Mix Solution in Acetonitrile, 20μg/mLFirst Standard®天津
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First Standard® 乙腈中25种醛酮DNPH混标溶液-2,15 µg /ml
25 Aldehyde/Ketone DNPH Mix Solution in Acetonitrile, 20μg/mLFirst Standard®天津
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反式-九氯标准溶液,39765-80-5,1000ug/ml in Purge and Trap Methanol
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邻苯二酚标准溶液,120-80-9,analytical standard,1000ug/ml in methanol
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First Standard® 乙腈中14种醛酮DNPH混标溶液, 10μg/mL
14 Aldehyde/Ketone DNPH Mix Solution in Acetonitrile, 10ppmFirst Standard®天津
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二溴甲烷,74-95-3,analytical standard,1000ug/ml in methanol
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First Standard® 乙腈中4种醛酮类混标溶液, 20μg/mL
4 Aldehyde/Ketone DNPH Mix Solution in Acetonitrile,20μg/mLFirst Standard®天津
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西维因标准溶液,63-25-2,1000ug/ml in Acetonitrile
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Butyraldehyde (DNPH Derivative) Solution in Methanol:Acetonitrile (80:20)
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