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3-氯-4-氟苯胺,367-21-5,分析标准品
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2,2,3,3,4,4,5,5,6,6-十溴代-1,1-联苯,13654-09-6,分析标准品
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Thermo Scientific™ Certified Cleaned Straight Sided Bottles
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甘油 溶液,56-81-5,certified reference material, 500 μg/mL in pyridine
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2,2',3,4,4',5',6-heptachlorobiphenyl EPA 州标准品
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二苯并(a,h)蒽,53-70-3,分析标准品
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联苯,92-52-4,熔点标准品
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2,2',3,4,5,6'-hexachlorobiphenyl EPA 州标准品
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电导度液标准品 111 mS/cm certified reference material for the measurement
Potassium chloride solution (nominal 111 mS/cm) certified reference material for the measurement
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电导度液标准品 0.147 mS/cm certified reference material for the measurement
Potassium chloride solution (nominal 0.147 mS/cm) certified reference material for the measurement
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