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320072

Sigma-Aldrich

Agua

ACS reagent, suitable for EPA 601

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About This Item

Fórmula lineal:
H2O
Número de CAS:
7732-18-5
Peso molecular:
18.02
Beilstein/REAXYS Number:
2050024
EC Number:
231-791-2
MDL number:
MFCD00011332
UNSPSC Code:
12191602
PubChem Substance ID:
329753952
NACRES:
NA.21

product name

Agua, ACS reagent

grade

ACS reagent

Quality Level

200

agency

suitable for EPA 601

vapor density

<1 (vs air)

vapor pressure

3 mmHg

form

liquid

impurities

MnO4- reducers, passes test
≤0.01% Silicate (as SiO2)
≤0.01 ppm silicate

refractive index

n20/D 1.34 (lit.)

pH

6.0-8.0 (25 °C)

conductivity

≤2 μmho per cm at 25 °C

bp

100 °C (lit.)

mp

0 °C (lit.)

density

1.000 g/mL at 3.98 °C (lit.)

anion traces

chloride (Cl-): ≤0.4 ppm
nitrate (NO3-): ≤0.4 ppm
phosphate (PO43-): ≤1.0 ppm
sulfate (SO42-): ≤1.0 ppm

cation traces

heavy metals (as Pb): ≤0.01 ppm

SMILES string

O

InChI

1S/H2O/h1H2

InChI key

XLYOFNOQVPJJNP-UHFFFAOYSA-N

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Application

Water can be used as a:
  • Solvent to ensure the appropriate deposition and recrystallization of the matrix material used in the matrix-assisted laser desorption/ionization (MALDI) analysis.
  • Mobile phase component in the high-performance liquid chromatography (HPLC) method used for the separation of polar compounds.

Storage Class

12 - Non Combustible Liquids

wgk_germany

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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Matrix vapor deposition/recrystallization and dedicated spray preparation for high-resolution scanning microprobe matrix-assisted laser desorption/ionization imaging mass spectrometry (SMALDI-MS) of tissue and single cells
Bouschen W, et al.
Rapid Communications in Mass Spectrometry, 24(3), 355-364 (2010)
Evaluation of various HILIC materials for the fast separation of polar compounds
Chauve B, et al.},
Journal of Separation Science, 33(6-7), 752-764 (2010)
Martin Fischnaller et al.
Analytica chimica acta, 761, 92-101 (2013-01-15)
Phosphorylation of proteins is an important cellular regulatory process. The analysis of protein phosphorylation is challenging due to the high dynamic range and low abundance natures of phosphorylated species. Mass spectrometry (MS) of phosphopeptides obtained from tryptic protein digests is
S Bekesova et al.
Journal of proteomics, 75(7), 2216-2224 (2012-02-14)
N-glycosylation of proteins provides a rich source of information on liver disease progression because majority of serum glycoproteins, with the exception of immunoglobulins, are secreted by the liver. In this report, we present results of an optimized workflow for MALDI-TOF
Manolis Mandalakis et al.
Journal of chromatography. A, 1217(1), 143-150 (2009-12-08)
The analysis of amino acids by gas chromatography mass spectrometry (GC-MS) after their derivatization with N-(t-butyldimethylsilyl)-N-methyltrifluoroacetamide was investigated as an alternative approach for the determination of free (FAA) and combined amino acids (CAA) in aerosols. This technique showed excellent linearity
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This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.

Environmental Methods Consumables Look Up Tool

This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.

Environmental Methods Consumables Look Up Tool

This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.

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