34877-M

Water

HPLC Plus

• Lineární vzorec: H₂O
• Číslo CAS: 7732-18-5
• Molekulová hmotnost: 18.02
• Beilstein/REAXYS Number: 2050024
• EC Number: 231-791-2
• MDL number: MFCD00011332
• UNSPSC Code: 12190000
• PubChem Substance ID: 329755083
• NACRES: NA.21

Vlastnosti

• grade: HPLC Plus
• form: liquid
• shelf life: limited shelf life, expiry date on the label
• technique(s): HPLC: suitable
• impurities: ≤0.0003% non-volatile matter; ≤1 ppb fluorescence (quinine) at 254 nm; ≤1 ppb fluorescence (quinine) at 365 nm
• refractive index: n20/D 1.34 (lit.)
• pH: 6-8 (25 °C)
• bp: 100 °C (lit.)
• mp: 0 °C (32 °F); 0 °C (lit.)
• solubility: water: miscible
• density: 1.000 g/mL at 3.98 °C (lit.)
• anion traces: chloride (Cl^-): ≤0.1 mg/kg; fluoride (F^-): ≤0.1 mg/kg; nitrate (NO₃^-): ≤0.1 mg/kg; sulfate (SO₄^2-): ≤0.1 mg/kg
• HPLC-gradient: ≤1 mAU at 254 nm; ≤5 mAU at 210 nm
• application(s): general analytical
• SMILES string: O
• InChI: 1S/H2O/h1H2
• InChI key: XLYOFNOQVPJJNP-UHFFFAOYSA-N

Popis

General description

HPLC Plus grade water is useful for the UHPLC (Ultra-High Pressure Liquid Chromatography) gradient elution and HPLC studies.

Application

Water has been used in the following studies:

• To prepare the diluted hydrochloric acid solutions required for the preparation of standard solutions of amino acid.
• In the sample extraction step during the gas chromatography mass spectrometric (GC-MS) analysis of free (FAA) and combined amino acids (CAA) in aerosol samples.
• Preparation of tryptic digests from the standard protein samples and milk digests from milk samples.
• Preparation of C₆₀-aminopropylsilica.

Preparation Note

Product filtered through a 0.2 μm filter

Other Notes

Important notice

• The article number 34877-4X2.5L-M will be discontinued. Please order the single bottle 34877-2.5L-M which is physically identical with the same exact specifications.

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Bezpečnostní informace

• Storage Class: 12 - Non Combustible Liquids
• wgk_germany: nwg
• flash_point_f: Not applicable
• flash_point_c: Not applicable