Merck

73594

Supelco

乙酸铵

LiChropur, eluent additive for LC-MS

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线性分子式:
CH3CO2NH4
CAS号:
分子量:
77.08
Beilstein:
4186741
EC 号:
MDL编号:
eCl@ss:
39021908
PubChem化学物质编号:
NACRES:
NB.21

等级

eluent additive for LC-MS

质量水平

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

检测方案

≥99.0% (calc. on dry substance, T)

形式

solid

质量

LiChropur

technique(s)

LC/MS: suitable

杂质

insoluble matter, passes filter test
≤1% water

灼烧残渣

≤0.01% (as SO4)

pH值(酸碱度)

6.2-7.5 (25 °C, 1 M in H2O)

mp

110-112 °C (dec.) (lit.)

溶解性

H2O: 1 M at 20 °C, clear, colorless

痕量阴离子

chloride (Cl-): ≤5 mg/kg
nitrate (NO3-): ≤10 mg/kg
sulfate (SO42-): ≤10 mg/kg

痕量阳离子

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

紫外吸收

λ: 260 nm Amax: ≤0.015
λ: 280 nm Amax: ≤0.010

适用性

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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此商品
32301238074431311
Ammonium acetate LiChropur™, eluent additive for LC-MS

Supelco

73594

乙酸铵

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

Sigma-Aldrich

32301

乙酸铵

Essential Grade
Ammonium acetate ACS reagent, ≥97%

Sigma-Aldrich

238074

乙酸铵

-
Ammonium acetate ≥99.99% trace metals basis

Sigma-Aldrich

431311

乙酸铵

-
assay

≥99.0% (calc. on dry substance, T)

assay

≥98%

assay

≥97%

assay

≥99.99% trace metals basis

form

solid

form

solid

form

powder, solid

form

solid

impurities

insoluble matter, passes filter test, ≤1% water

impurities

≤0.005% KMnO4 red. matter (as O), ≤2% water (Karl Fischer), ≤5 mg/kg heavy metals (as Pb)

impurities

≤0.005% insolubles

impurities

≤0.005% insolubles, <100 ppm total metallic impurities

pH

6.2-7.5 (25 °C, 1 M in H2O)

pH

6.7-7.3 (25 °C, 5% in water)

pH

6.7-7.3 (25 °C, 5%)

pH

6.7-7.3 (25 °C, 5% in water)

mp

110-112 °C (dec.) (lit.)

mp

110-112 °C (dec.) (lit.)

mp

110-112 °C (dec.) (lit.)

mp

110-112 °C (dec.) (lit.)

一般描述

乙酸铵以白色晶体的形式存在。它时以醋酸和氨为原料制备,经中和至pH 7.0。 它被广泛应用于分析化学、医药、纺织染色等领域。

应用

乙酸铵已可用于制备UPLC-MS/MS洗脱液和HPLC-MS/MS洗脱液,以比较9种药物化合物在水环境样品中的基质效应。它还被用作添加剂,以提高MALDI-MS对磷酸肽的检测。

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法律信息

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

储存分类代码

11 - Combustible Solids

WGK

WGK 1

闪点(F)

Not applicable

闪点(C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)


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Sigma-Aldrich

238074

乙酸铵

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)
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)
Dale L. Perry
Handbook of Inorganic Compounds, 17-17 (1995)
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
Richard R Sprenger et al.
Cell reports, 34(5), 108710-108710 (2021-02-04)
Diurnal regulation of whole-body lipid metabolism plays a vital role in metabolic health. Although changes in lipid levels across the diurnal cycle have been investigated, the system-wide molecular responses to both short-acting fasting-feeding transitions and longer-timescale circadian rhythms have not

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