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14种挥发卤代烃混标 VOC Mix-14 varied conc in Methanol

35种挥发卤代烃混标 VOC Mix-35 2000ug/ml in Methanol

35种有机挥发物混标 VOC Mix-35 2000ug/ml in Methanol(contains 4% DMF)

21种有机挥发物混标 VOC Mix-21 varied conc.in Methnaol

15种硝基苯混标 Aromatic Mix-15 200ug/ml in Methanol

15种硝基化合物混标 Nitroaromatics-Mix15 in n-Hexane/Acetone

15种硝基苯混标 Aromatic Mix-15 1000ug/mL in Methanol

13种酚类化合物混标 Phenols Mix-13 varied conc.in Methanol

24种有机挥发物 VOC Mix-24 2000ug/ml in Methanol/Water (9:1)

13种酚类化合物混标 Phenols Mix-13 varied conc.in Methanol

3种丙烯腈混标 Voc Mix-3 2000ug/ml in Methanol

2种替代物混标 Mix-2 10ug/ml in n-Hexane

2种替代物混标 Mix-2 100ug/ml in n-Hexane

2种内标物混标 Mix-2 100ug/ml in n-Hexane

18种多氯联苯混标 PCB Mix-18 100µg/ml in n-Hexane

8种硝基苯混标 Nitrobenzenes Mix-8 1000ug/ml in Methanol

30种卤代烃 VOC Mix-30 in Methanol 不同浓度

12种氯苯混合物 Aromatics Mix-12 in Methanol

7种硝基苯混标 Nitroaromatics Mix-7 2000ug/ml in Iso-octane

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