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安全信息

34877-M

Sigma-Aldrich

水

HPLC Plus

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About This Item

线性分子式:
H2O
CAS号:
7732-18-5
分子量:
18.02
Beilstein:
2050024
EC 号:
231-791-2
MDL编号:
MFCD00011332
UNSPSC代码:
12190000
PubChem化学物质编号:
329755083
NACRES:
NA.21
等级:
HPLC Plus
技术:
HPLC: suitable
应用:
general analytical
沸点:
100 °C (lit.)

等级

HPLC Plus

表单

liquid

保质期

limited shelf life, expiry date on the label

技术

HPLC: suitable

杂质

≤0.0003% non-volatile matter
≤1 ppb fluorescence (quinine) at 254 nm
≤1 ppb fluorescence (quinine) at 365 nm

折射率

n20/D 1.34 (lit.)

pH值（酸碱度）

6-8 (25 °C)

沸点

100 °C (lit.)

mp

0 °C (32 °F)
0 °C (lit.)

溶解性

water: miscible

密度

1.000 g/mL at 3.98 °C (lit.)

痕量阴离子

chloride (Cl-): ≤0.1 mg/kg
fluoride (F-): ≤0.1 mg/kg
nitrate (NO3-): ≤0.1 mg/kg
sulfate (SO42-): ≤0.1 mg/kg

HPLC-梯度

≤1 mAU at 254 nm
≤5 mAU at 210 nm

应用

general analytical

SMILES字符串

O

InChI

1S/H2O/h1H2

InChI key

XLYOFNOQVPJJNP-UHFFFAOYSA-N

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一般描述

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

应用

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.

制备说明

产品经过 0.2μm 过滤器过滤

其他说明

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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储存分类代码

12 - Non Combustible Liquids

WGK

nwg

闪点(°F)

Not applicable

闪点(°C)

Not applicable

法规信息

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分析证书(COA)

Lot/Batch Number
BCCM1757
BCCM0323
BCCL9241
BCCL9243
BCCL9119

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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
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

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