Standard substance (GB50325-2020)

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  Standard Substance (GB50325-2020) For Mixed Solution Of Toluene, O-xylene, M-xylene And P-xylene In Methanol | 100ug/mL | 2mL | Environmental Monitoring Standard Material

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  Standard substance (gb50325-2020) for mixed solution of toluene, o-xylene, m-xylene and p-xylene in methanol with concentration 100ug/ml, volume 2ml suitable for laboratory analytical applications …

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  Standard Substance (GB50325-2020) For Mixed Solution Of Toluene, O-xylene, M-xylene And P-xylene In Methanol | 800ug/mL | 2mL | Environmental Monitoring Standard Material

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  Standard substance (gb50325-2020) for mixed solution of toluene, o-xylene, m-xylene and p-xylene in methanol with concentration 800ug/ml, volume 2ml suitable for laboratory analytical applications …