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https://www.nist.gov/publications/solution-certified-reference-material-recipe-challenge
Solution to Certified Reference Material Recipe Challenge | NIST
certified reference material
solution
recipe
challenge
nist
https://www.sigmaaldrich.com/MX/es/product/sial/phr1101
L -Lysine Pharmaceutical Secondary Standard; Certified Reference Material 657-27-2
L-Lysine monohydrochloride Pharmaceutical Secondary Standard; Certified Reference Material; CAS Number: 657-27-2; EC Number: 211-519-9; Synonyms:...
certified reference material
secondary standard
lysine
pharmaceutical
https://www.sigmaaldrich.com/US/en/product/sial/phr1116
L -Menthol Pharmaceutical Secondary Standard; Certified Reference Material 2216-51-5
L-Menthol [CAS No. 2216-51-5], a flavor enhancer and local anesthetic, is available as a pharmaceutical secondary standard and certified reference material for...
certified reference material
secondary standard
menthol
pharmaceutical
https://www.sigmaaldrich.com/US/en/product/sial/phr1803
Paclitaxel Pharmaceutical Secondary Standard; Certified Reference Material 33069-62-4
Paclitaxel Pharmaceutical Secondary Standard; Certified Reference Material; CAS Number: 33069-62-4; Synonyms: Paclitaxel at Sigma-Aldrich
certified reference material
secondary standard
paclitaxel
pharmaceutical
https://www.sigmaaldrich.com/MX/es/product/sial/phr1330
Fosfato de potasio monobasic Pharmaceutical Secondary Standard; Certified Reference Material |...
Fosfato de potasio monobasic Pharmaceutical Secondary Standard; Certified Reference Material; CAS Number: 7778-77-0; EC Number: 231-913-4; Synonyms:...
certified reference material
secondary standard
de
monobasic
pharmaceutical
https://www.sigmaaldrich.com/US/en/product/supelco/189191amp
F.A.M.E. Mix, C4-C24 certified reference material, wt. % (varied) | Sigma-Aldrich
F.A.M.E. Mix, C4-C24 certified reference material, wt. % (varied) at Sigma-Aldrich
certified reference material
mix
https://www.sigmaaldrich.com/US/en/product/sial/cod500
COD 500 mg/L Calibration Standard certified reference material | Sigma-Aldrich
COD 500 mg/L Calibration Standard certified reference material; Synonyms: Chemical Oxygen Demand Reference Standard at Sigma-Aldrich
certified reference material
cod
mg
calibration
standard