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MilliporeSigma

73594

Ammonium acetate

LiChropur, eluent additive for LC-MS

Ammonium acetate
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25 G

$189.00

100 G

$670.00

$189.00


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About This Item

Linear Formula:
CH3CO2NH4
CAS Number:
Molecular Weight:
77.08
Beilstein/REAXYS Number:
4186741
EC Number:
MDL number:
UNSPSC Code:
41115710
eCl@ss:
39021908
PubChem Substance ID:
NACRES:
NB.21

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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

Quality Level

reg. compliance

suitable for FDA C-010.02

product line

LiChropur

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

application(s)

PFAS testing

InChI

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

InChI key

USFZMSVCRYTOJT-UHFFFAOYSA-N

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1 of 4

This Item
5.3300432301238074
grade

eluent additive for LC-MS

grade

-

grade

ACS reagent, puriss. p.a.

grade

ACS reagent

assay

≥99.0% (calc. on dry substance, T)

assay

-

assay

≥98%

assay

≥97%

Quality Level

100

Quality Level

100

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

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

agency

reag. Ph. Eur.

agency

-

form

solid

form

solid

form

solid

form

powder, solid

solubility

H2O: 1 M at 20 °C, clear, colorless

solubility

1480 g/L

solubility

-

solubility

-

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]

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

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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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
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)

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Questions

1–3 of 3 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  3. under what conditions should you store ammonium acetate? ambient temperature with low relative humidity or 2-6 degrees in a fridge with high relative humidity- given that it is hygroscopic

    1 answer
    1. This product is to be stored at room temperature. Although this material is hygroscopic, desiccation is not required if the bottle is securely sealed.

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