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First Standard® 乙腈中乙醛-DNPH溶液,3μg/mL
Acetaldehyde-DNPH Solution in Acetonitrile, 3μg/mLFirst Standard®天津
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First Standard® 乙腈中丁醛-DNPH溶液, 3μg/mL
Butyraldehyde-DNPH Solution in Acetonitrile, 3μg/mLFirst Standard®天津
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三唑酮标准溶液,43121-43-3,1000ug/ml in Purge and Trap Methanol
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3,5-二甲酚标准溶液,108-68-9,analytical standard,1000ug/ml in methanol
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间苯三酚标准溶液,108-73-6,analytical standard,1000ug/ml in methanol
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间二氯苯标准溶液,541-73-1,analytical standard,1000ug/ml in methanol
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邻硝基氯苯标准溶液,88-73-3,analytical standard,1000ug/ml in methanol
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First Standard® 乙腈中丁烯醛-DNPH溶液,3μg/mL
Crotonaldehyde-DNPH Solution in Acetonitrile, 3μg/mLFirst Standard®天津
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First Standard® 乙腈中苯甲醛-DNPH溶液,3μg/mL
Benzaldehyde-DNPH Solution in Acetonitrile, 3μg/mLFirst Standard®天津
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对硝基乙苯标准溶液,612-22-6,analytical standard,1000ug/ml in methanol
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