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73594

Supelco

Ammonium acetate

LiChropur, eluent additive for LC-MS

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Linear Formula:
CH3CO2NH4
CAS Number:
Molecular Weight:
77.08
Beilstein:
4186741
EC Number:
MDL number:
eCl@ss:
39021908
PubChem Substance ID:
NACRES:
NB.21

grade

eluent additive for LC-MS

Quality Level

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

reg. compliance

suitable for FDA C-010.02

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

SMILES string

N.CC(O)=O

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

InChI

1S/C2H4O2.H3N/c1-2(3)4;/h1H3,(H,3,4);1H3

InChI key

USFZMSVCRYTOJT-UHFFFAOYSA-N

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This Item
32301372331A7262
Ammonium acetate LiChropur™, eluent additive for LC-MS

73594

Ammonium acetate

-
Ammonium acetate puriss. p.a., ACS reagent, reag. Ph. Eur., ≥98%

32301

Ammonium acetate

Essential Grade
Ammonium acetate 99.999% trace metals basis

372331

Ammonium acetate

-
Ammonium acetate reagent grade, ≥98%

A7262

Ammonium acetate

Essential Grade
assay

≥99.0% (calc. on dry substance, T)

assay

≥98%

assay

99.999% trace metals basis

assay

≥98%

Quality Level

100

Quality Level

-

Quality Level

200

Quality Level

200

agency

suitable for ASTM® 7968, suitable for DIN 38407-42, suitable for EPA 533, suitable for EPA 8327, suitable for EPA ACB B23-05b, suitable for GB 5009.253-2016, suitable for ISO 25101, suitable for ASTM® 7979, suitable for EPA 537.1, suitable for GB 31604.35-2016, suitable for ISO/CEN 15968-2010, suitable for EPA 1633, suitable for ISO 21675 2019, suitable for EPA ACB B21-02

agency

reag. Ph. Eur.

agency

-

agency

-

form

solid

form

solid

form

crystalline, solid

form

solid

pH

6.2-7.5 (25 °C, 1 M in H2O)

pH

6.7-7.3 (25 °C, 5% in water)

pH

-

pH

6.5-7.5 (25 °C, 77.1 g/L)

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.

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. It has also been used as an additive to improve detection of phosphopeptides using MALDI-MS.

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Legal Information

ASTM is a registered trademark of American Society for Testing and Materials
LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Ammonium acetate

Comparison of matrix effects in HPLC-MS/MS and UPLC-MS/MS analysis of nine basic pharmaceuticals in surface waters.
Van De Steene JC, Lambert WE.
Journal of the American Society For Mass Spectrometry, 19(5), 713-718 (2008)
Dale L. Perry
Handbook of Inorganic Compounds, 17-17 (1995)
Enhanced detection of phosphopeptides in matrix-assisted laser desorption/ionization mass spectrometry using ammonium salts.
Asara JM, Allison J.
Journal of the American Society For Mass Spectrometry, 10(1), 35-44 (1999)
J M Asara et al.
Journal of the American Society for Mass Spectrometry, 10(1), 35-44 (1999-01-15)
Matrix-assisted laser desorption/ionization mass spectrometry (MALDI MS) has been used successfully to detect phosphorylation sites in proteins. Applications may be limited by the low response of phosphopeptides compared to nonphosphorylated peptides in MALDI MS. The addition of ammonium salts to
Jet C Van De Steene et al.
Journal of the American Society for Mass Spectrometry, 19(5), 713-718 (2008-03-18)
When developing an LC-MS/MS-method matrix effects are a major issue. The effect of co-eluting compounds arising from the matrix can result in signal enhancement or suppression. During method development much attention should be paid to diminishing matrix effects as much

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Chromatograms

application for UHPLCapplication for HPLC

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