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Merck

270733

Sigma-Aldrich

Water
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suitable for HPLC

別名:

Aqua, Dihydrogen oxide

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1 L
¥8,900
4 L
¥20,200
20 L
¥102,000

¥8,900


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サイズを選択してください

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1 L
¥8,900
4 L
¥20,200
20 L
¥102,000

About This Item

化学式:
H2O
CAS番号:
分子量:
18.02
Beilstein:
2050024
EC Number:
MDL番号:
UNSPSCコード:
12190000
PubChem Substance ID:
NACRES:
NA.21
bp:
100 °C (lit.)

¥8,900


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グレード

HPLC grade

品質水準

蒸気密度

<1 (vs air)

蒸気圧

3 mmHg

フォーム

liquid

テクニック

HPLC: suitable

蒸発残留物質

<0.0003%

屈折率

n20/D 1.34 (lit.)

pH

6.0-8.0 (25 °C)

bp

100 °C (lit.)

mp

0 °C (lit.)

密度

1.000 g/mL at 3.98 °C (lit.)

λ

H2O reference

UV吸収

λ: 205 nm Amax: 0.01
λ: 210 nm Amax: 0.01
λ: 250-400 nm Amax: 0.005

SMILES記法

O

InChI

1S/H2O/h1H2

InChI Key

XLYOFNOQVPJJNP-UHFFFAOYSA-N

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詳細

HPLCに適した水は、陽イオン・陰イオン交換クロマトグラフィーの両方においてイソクラティック溶出のための溶媒として一般的に使用されます。さらに、標準原液を調製するための成分として、またLC-MS-MS分析前にサンプルを濃縮するためのウォーターバスにおける窒素気流下での蒸発のために使用されます。[1] [2]

アプリケーション

水は、以下の用途で使用されます:
  • 細胞溶解プロセスのバッファー調製のための溶媒として。[3]
  • 分析種の分離と検出のためのHPLC–UV–ダイオードアレイ検出における移動相の成分として。[4]

包装

M-Bottle for Solvents
As a global leader in lab reagents, we are constantly looking for new ways to optimize the safety of our products. The newly developed 4L solvent bottle design features advanced sealing technology that eliminates leaks to make the handling of solvents safer and more convenient than ever before.
See all the new features here!

調製ノート

本製品は0.2 μmフィルターを通しています。

その他情報

特記事項
カタログ番号270733-6X1Lは製造を中止します。仕様が全く同一で物理的に同一の単一ボトル270733-1Lをご注文ください。

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HPLCまたはLC-MS分析に最適なLiChropur試薬を見つけてください

保管分類コード

12 - Non Combustible Liquids

WGK

nwg

引火点(°F)

Not applicable

引火点(℃)

Not applicable


適用法令

試験研究用途を考慮した関連法令を主に挙げております。化学物質以外については、一部の情報のみ提供しています。 製品を安全かつ合法的に使用することは、使用者の義務です。最新情報により修正される場合があります。WEBの反映には時間を要することがあるため、適宜SDSをご参照ください。

Jan Code

270733-VAR:
270733-20L:
270733-2X10L:
270733-BULK:
270733-4X2.5L:
270733-18L-PW:
270733-10L:
270733-4X2L:
270733-4L:
270733-50L:
270733-1L:
270733-6X1L:
270733-18L:
270733-2.5L:
270733-4X4L:
270733-2L:
270733-6X800ML:


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試験成績書(COA)

Lot/Batch Number

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特定のバージョンが必要な場合は、ロット番号またはバッチ番号で特定の証明書を検索できます。

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Slide 1 of 2

1 of 2

水 for ultratrace analysis, ACS reagent

Supelco

14211

水 ACS reagent

Sigma-Aldrich

320072

Identification of the cysteine protease legumain as a potential chronic hypoxia-specific multiple myeloma target gene
Ada-Sophia C et al.
Cells, 11, 292-292 (2022)
Rapid confirmatory assay for the simultaneous detection of ronidazole, metronidazole and dimetridazole in eggs using liquid chromatography-tandem mass spectrometry
Els D et al.
Analyst, 125, 1533-1535 (2000)
Milk ultrafiltrate analysis by ion chromatography and calcium activity for SMUF preparation for different scientific purposes and prediction of its supersaturation
Joseph D et al.
International dairy journal, 68, 60-69 (2017)
Optimization and validation of HPLC-UV-DAD and HPLC-APCI-MS methodologies for the determination of selected PAHs in water samples
Titato, Guilherme T M et al.
Journal of Chromatographic Science, 44, 35-40 (2006)
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

資料

Chromolith® RP-18e columns optimize Oligo Standard 6 separation with varied flow rates and ion-pairing reagent evaluation.

Milli-Q®装置から得られる超純水はBPAを含まず、発生学的研究に適しており、内分泌かく乱物質の干渉を最小限に抑えることが示されています。

Ultrapure water from Milli-Q® system shown free of BPA, suitable for embryology research, minimizing endocrine disruptor interference.

LC-UV-MS workflow details teriparatide peptide mapping, including enzymatic digestion, separation conditions, and QTOF mass spectrometer identification.

すべて表示

プロトコル

A guide to create solvent systems used for the thin-layer chromatography assay of Novabiochem products.

質問

1–8/8 質問  
  1. Is this water suitable for lal test method ? Is pyrogen free ? Is there a specification?

    1 回答
    1. This product is not suitable for the Limulus Amebocyte Lysate test method (LAL). Specifications for this product are available in the documents section of the webpage, but pyrogen levels are not specified. This product is not certified as pyrogen-free and is not sterile. This product is intended for use as a solvent for High-Performance Liquid Chromatography mobile phases.

      役に立ちましたか?

  2. Will dispensing small quantities and resealing the container lead to air dissolving in the water? I intend to use 50ml-100ml for my experiments.

    1 回答
    1. Opening a container that is not isolated from the atmosphere could results in ambient air dissolving in the water remaining inside the container. The rate of of air introduction would need to be monitored for a given set of conditions such as temperature, air exchange in the laboratory, and relative humidity.

      役に立ちましたか?

  3. Do you know the resistivity value @ 25°C?

    1 回答
    1. The resistivity of this product has not been determined.

      役に立ちましたか?

  4. How can I determine the shelf life / expiration / retest date of this product?

    1 回答
    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/449/386/product-dating-information-mk.pdf

      役に立ちましたか?

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

    1 回答
    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

      役に立ちましたか?

  6. How is this water purified? is it distilled?

    1 回答
    1. The water purification process involves several steps:
      • The water initially passes through a carbon exchange tank to remove organic compounds.
      • It is then filtered using a 1μm PE cartridge filter to remove any remaining impurities.
      • Inorganic compounds are eliminated through deionization tanks, ensuring high purity. The resistivity of the water is checked during this stage.
      •The water undergoes sterilization using UV light to eliminate any microorganisms.
      • Finally, the water is filtered through a 0.2μm cartridge filter, and the resulting HPLC grade water is packaged in glass bottles.
      Note: This information provides an overview of the typical water purification process and may vary depending on specific applications or systems.

      役に立ちましたか?

  7. Do you know the concentration of TOC in this water?

    1 回答
    1. The concentration of TOC in this product is not determined. Product 78533, Water for TOC Analysis, may be of interest.
      Please see the link below to review this product option:
      https://www.sigmaaldrich.com/product/sial/78533

      役に立ちましたか?

  8. Is this product (HPLC grade water #270733) DNase-, RNase- and protease-free?

    1 回答
    1. The item is not tested for the presence of DNA, RNA, and protease.

      Please see the links below to review product options that include this testing:
      W4502
      https://www.sigmaaldrich.com/US/en/product/sigma/w4502
      95284
      https://www.sigmaaldrich.com/US/en/product/sigma/95284

      Note that the above options are NOT tested for suitability in HPLC.

      役に立ちましたか?

レビュー

1のうち1の評価者がサンプル商品を受け取ったか、プロモーションに参加しました

アクティブなフィルタ

    • 3件のレビュー
    • 9件の投票
    星5/5個です。

    Good, pure water

    Water was high purity, HPLC grade. We didn't actually use it for HPLC but it seemed very clean and pure for our purposes.

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    役に立ちましたか?

ライフサイエンス、有機合成、材料科学、クロマトグラフィー、分析など、あらゆる分野の研究に経験のあるメンバーがおります。.

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