Hóa chất thí nghiệm

Nigrosine (C.I. 50420) Certistain® dry dye used to stain capsules and spores Merck

Hóa chất thí nghiệm

Nile blue (hydrogen sulfate) (C.I. 51180) used for staining melanin and lipofuscin Merck

Hóa chất thí nghiệm

Nitrate Standard Solution 15.0 mg/l Merck

Hóa chất thí nghiệm

Nitrate standard solution traceable to SRM from NIST NaNO₃ in H₂O 1000 mg/l NO₃ Certipur® Merck

Hóa chất thí nghiệm

Nitrate Standard Solution, CRM traceable to SRM from NIST 50.0 mg/l NO₃ in H₂O 11.29 mg/l NO₃-N in H₂O 100ml Merck