
Ammonium Acetate - 100 Gr - Sigma
Código: 24242
Ammonium acetate
LiChropur™, eluent additive for LC-MS
Sobre este item
Fórmula linear:
CH3CO2NH4
CAS Number:
Peso molecular:
77.08
Beilstein:
4186741
Número CE:
Número MDL:
Código UNSPSC:
41115710
eCl@ss:
39021908
ID de substância PubChem:
NACRES:
NB.21
Agency
suitable for ASTM® 7968
suitable for ASTM® 7979
suitable for DIN 38407-42
suitable for EPA 1633
suitable for EPA 533
suitable for EPA 537.1
suitable for EPA 8327
suitable for EPA ACB B21-02
suitable for EPA ACB B23-05b
suitable for GB 31604.35-2016
suitable for GB 5009.253-2016
suitable for ISO 21675 2019
suitable for ISO 25101
suitable for ISO/CEN 15968-2010
Nível de qualidade
conformidade reg.
suitable for FDA C-010.02
Ensaio
≥99.0% (calc. on dry substance, T)
Formulário
solid
qualidade
LiChropur™
técnica(s)
LC/MS: suitable
Impurezas
insoluble matter, passes filter test
≤1% water
resíduo de ignição
≤0.01% (as SO4)
pH
6.2-7.5 (25 °C, 1 M in H2O)
pf
110-112 °C (dec.) (lit.)
solubilidade
H2O: 1 M at 20 °C, clear, colorless
traços de ânion
chloride (Cl-): ≤5 mg/kg
Descrição geral
Ammonium acetate exists as a white crystal. It is prepared from acetic acid and ammonia by neutralization to pH 7.0. It is widely used in analytical chemistry, drugs and in textile dyeing.[1]
Aplicação
Ammonium acetate has been used to prepare eluents for UPLC-MS/MS and HPLC-MS/MS to compare the matrix effect of 9 pharmaceutical compounds in aqueous environmental samples.[2] It has also been used as an additive to improve detection of phosphopeptides using MALDI-MS.[3]
Informações legais
ASTM is a registered trademark of American Society for Testing and Materials
LiChropur is a trademark of Merck KGaA, Darmstadt, Germany