Sigma-Aldrich 73594 Ammonium acetate LiChropur™, eluent additive for LC-MS 100 gr
| Sigma-Aldrich 73594 Ammonium acetate LiChropur™, eluent additive for LC-MS 100 gr |
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Linear Formula: CH3CO2NH4
CAS Number: 631-61-8
Molecular Weight: 77.08
Beilstein: 4186741
EC Number: 211-162-9
MDL number: MFCD00013066
eCl@ss: 39021908
PubChem Substance ID: 329765068
NACRES: NB.21
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PROPERTIES
grade eluent additive for LC-MS
Quality Level 100
assay ≥99.0% (calc. on dry substance, T)
form solid
quality LiChropur™
technique(s) LC/MS: suitable
impurities
insoluble matter, passes filter test
≤1% water
ign. residue ≤0.01% (as SO4)
pH 6.2-7.5 (25 °C, 1 M in H2O)
mp 110-112 °C (dec.) (lit.)
solubility H2O: 1 M at 20 °C, clear, colorless
anion traces
chloride (Cl-): ≤5 mg/kg
nitrate (NO3-): ≤10 mg/kg
sulfate (SO42-): ≤10 mg/kg
cation traces
Al: ≤1 mg/kg
As: ≤0.1 mg/kg
Ba: ≤1 mg/kg
Bi: ≤1 mg/kg
Ca: ≤5 mg/kg
Cd: ≤1 mg/kg
Co: ≤1 mg/kg
Cr: ≤1 mg/kg
Cu: ≤1 mg/kg
Fe: ≤1 mg/kg
K: ≤5 mg/kg
Li: ≤1 mg/kg
Mg: ≤1 mg/kg
Mn: ≤1 mg/kg
Mo: ≤1 mg/kg
Na: ≤5 mg/kg
Ni: ≤1 mg/kg
Pb: ≤1 mg/kg
Sr: ≤1 mg/kg
Zn: ≤1 mg/kg
λ 1 M in H2O
UV absorption
λ: 260 nm Amax: ≤0.015
λ: 280 nm Amax: ≤0.010
suitability passes test for LC-MS
SMILES string N.CC(O)=O
InChI 1S/C2H4O2.H3N/c1-2(3)4;/h1H3,(H,3,4);1H3
InChI key USFZMSVCRYTOJT-UHFFFAOYSA-N
DESCRIPTION
General description
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]
Application
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]
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Legal Information
LiChropur is a trademark of Merck KGaA, Darmstadt, Germany |
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