Reagent Portable photometric test kit for ammonia nitrogen determination(salicylic acid method) (HJ 1449-2026) BWS3074SDSCOA View product
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Reference 11 perfluorinated compound quality control samples in water BWQ0732-2016SDSCOA 10.9μg/L100.1ng/L View product
Reagent Portable photometric test kit for ammonia nitrogen determination(Nessler's reagent method) (HJ 1448-2026) BWS3075SDSCOA View product
Reference Quality control sample of hexavalent chromium in drinking water BWS0685-2016CAS 7440-47-3SDSCOA View product
Reference Dimethyl ether in methanol BWQ0735-2016CAS 115-10-6SDSCOA 100μg/mL500μg/mL2000μg/mL View product
Reference Ammonia nitrogen quality control sample in drinking water BWS0684-2016CAS 12125-02-9SDSCOA View product
Reagent Portable spectrophotometric determination kit for hexavalent chromium BWS3076SDSCOA View product
Reference Methylbromide in methanol BWQ0738-2016CAS 74-83-9SDSCOA 100μg/mL1000μg/mL2000μg/mL+1 View product
Reference Microplastic(Polyethylene) quality control samples in water BWS0693-2016SDSCOA View product
Reference Adenosine deaminase in frozen human serum BWM100103CAS 9026-93-1SDSCOA 5.2U/L2.5U/L View product
Solution Analytical volumetric solution hydrochloric acid BWJ4148-2016CAS 7647-01-0SDSCOA View product
Reference Component Analysis of iodine in freeze dried human urine BWM500002CAS 7681-11-0SDSCOA View product
