540-97-6

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Quantitative Analysis of Nitrosamine Impurities by LC-MS Methods from the United States Pharmacopeia General Chapter <1469>

This application note describes the LC-MS-based quantitative analysis of known nitrosamine impurities following procedures 1 and 3 as given in USP general chapter .

Performing a Separation with IgG Sepharose 6 Fast Flow

Perform a separation with IgG Sepharose 6 Fast Flow from Cytiva, an Affinity Chromatography product for purification of recombinant fusion proteins containing a protein A tail.

Ni Sepharose 6 Fast Flow for Protein Purification

Ni Sepharose 6 Fast Flow purifies histidine-tagged proteins efficiently, offering high cross-linked agarose beads with Ni2+ ions.

Oligonucleotide Standard 6 Mix LC-UV Analysis

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

Enzymatic Activity of Glucose-6-Phosphatase [EC 3.1.3.9]

To measure glucose-6-phosphatase activity, the Taussky-Shorr method is used. This method is a spectrophotometric stop-rate determination assay that is measured at 660 nm.

定量聚合酶链反应和数字聚合酶链反应的检测方法

荧光染料或探针包含在PCR混合物中，用以监测在反应进行过程中DNA扩增子浓度的变化。

LC/MS Analysis of Phospholipids in Milk on Asc

(soybean), ≥97%; L-α-Phosphatidylethanolamine from egg yolk, Type III, ≥97% (TLC), lyophilized powder; L-α-Phosphatidylcholine, from egg yolk, Type XVI-E, ≥99% (TLC), lyophilized powder; Sphingomyelin, from chicken egg yolk, ≥95%

Enzymatic Assay of β-AMYLASE (EC 3.2.1.2)

Beta-amylase is found in bacteria, fungi, and plants. To measure β-amylase activity, this assay uses a colorimetric spectrophotometric stop reaction at 540 nm.

Top 6 "Things to Do" for the Use of Pure Water Machines

Enzymatic Assay of Glucose-6-Phosphate Dehydrogenase (EC 1.1.1.49)

To measure glucose-6-phosphate dehydrogenase activity, beta-nicotinamide adenine dinucleotide phosphate is used in a spectrophotometric rate determination assay at 340 nm.

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