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Showing 1-30 of 649 results for "211-320-7" within Site Content

Determination of 7 Nitrosamines in Drinking Water

Nitrosamines analysis by solid phase extraction (SPE) and subsequent gas chromatography-tandem mass spectrometry (GC-MS/MS) according to GB 5750.10-2023.

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 .

Color Determination of Sugar based on ICUMSA Color GS1-7

Learn about the ICUMSA® method GS1-7 to measure the color of sample solutions of raw sugar, brown sugar, or sugar syrups.

Estimation of Proline in Fruit and Vegetable Juices

Spectrophotometric determination of proline by the Ninhydrin method, per EN 1141 and German Food and Feed Code §64 LFBG 31.00-7.

RNA Therapeutics & Delivery USA

Visit us at booth #7 to learn about our solutions to help you overcome your mRNA manufacturing and LNP formulation challenges.

cOmplete™, Mini, EDTA-free Protocol

Dissolve one tablet in 10 ml aqueous buffer or water. If high proteolytic activity is present, dissolve one tablet in 7 ml buffer.

Scepter™ 3.0 Cell Counter – How it Works

Scepter™ counting is 7 to 10 times faster than hemocytometry-and also faster than other automated counters. Learn more about how this amazing technology works

Enzymatic Assay of Cathepsin B

Cathepsin B is a lysosomal cysteine proteinase with broad specificity. This protocol uses Nα–CBZ–Arg–Arg–7–amido–4–methylcoumarin as the substrate for fluorometric detection of Cathepsin B activity.

Assay of Betamethasone Sodium Phosphate by HPTLC

Development of an HPTLC based method, using Silica Gel 60 F254 plate, to determine Betamethasone Sodium Phosphate over a concentration range of 1 to 7 µg/spot.

In Vitro Differentiation of Human PBMC and CD34+ Derived Monocytes into Mature CD83+/CD14- Dendritic Cells

Generate mature human dendritic immune cells from PBMCs or CD34+ stem cell derived monocytes in 7 days in defined and serum-free dendritic cell culture media. Explore over 350 PromoCell products.

3D Mammosphere Culture Media

3D mammosphere culture protocol used to expand human MCF-7 and MDA-MB-231 breast cancer cells in serum-free/xeno-free stem cell culture media. Explore over 350 PromoCell products on Sigma.com.

Signal Peptide Optimization: Effect On Recombinant Monoclonal IgG Productivity, Product Quality And Antigen-Binding Affinity

A signal peptide is a 5-30 amino acid (aa) peptide present at the N-terminus of secretory proteins.

Pressure-Temperature Calculator for Solvents

Use the calculator to determine the boiling point or pressure of solvents based on the Antoine Equation and see solvent attributes. View a list of products based on the solvent CAS number.

Please contact your local representative for additional help with your order, our products, and product selection.

GC Analysis of Sweet Orange Essential Oil on SLB®-5ms (10 m x 0.10 mm I.D., 0.10 µm), Fast GC Analysis

-β-Farnesene; α-Huµlene; Germacrene D; (+)-Valencene; Bicyclogermacrene; (+)-δ-Cadinene

Thermal Transitions of Homopolymers: Glass Transition & Melting Point

Literature values for the glass transition temperature, (Tg), and melting temperature, (Tm), are given for the more common homopolymers.

Colby Group – Professor Product Portal

Prof. David Colby's laboratory is developing synthetic methods to enable the efficient modification of complex molecules, such as natural products, as well as the production of fluorinated compounds. They have focused on understanding how to cleave bonds in order to

Sample Preparation in Ion Exchange Chromatography

This page clarifies sample preparation, buffer exchange and desalting, removal of lipoproteins, phenol red, and low molecular weight contaminants in Ion exchange chromatography.

Purification of Membrane Proteins

This page shows how to perform a purification of His-tagged membrane proteins.

The following procedure has been evaluated with Ficoll-Paque PLUS and is recommended for separation of normal blood samples for maximum reproducibility.

Sample Preparation for Chromatographic Purification

This page discusses various aspects of sample preparation for chromatographic purification.

Sample Preparation for Affinity Chromatography in Specific Groups of Biomolecules

Qualitative Thin Layer Chromatography Analysis Ginkgo

Qualitative Thin Layer Chromatography Analysis of Flavonoids and Quantification of Terpene Lactones in Ginkgo Biloba Extracts and Tablets

Human Aortic Endothelial Cells (HAOEC) Culture Protocol

Technical information for working with human aortic endothelial cells including thawing, subculturing and cryopreservation.

Extractables Studies of Single-Use Equipment Immediate Identification and Quantification of Unknown Extractables by GC/MS with a Certified Reference Material Mix for Extractables and Leachables

Identification and quantification of the most common extractables originating from single-use equipment by GC/MS and an Extractables and Leachables Screening Standard.

Recent Developments in Silicon Anode Materials for High Performance Lithium-Ion Batteries

Recent demand for electric and hybrid vehicles, coupled with a reduction in prices, has caused lithium-ion batteries (LIBs) to become an increasingly popular form of rechargeable battery technology.

Materials for Advanced Thermoelectrics

Thermoelectric materials comprise a wide range of solid compounds distinguished by their ability to convert thermal and electrical energy.

Characteristics of Glutathione Sepharose® Products

Glutathione Sepharose® High Performance is recommended for high-resolution puriﬁcation of GST-tagged proteins, providing sharp peaks and concentrated eluent.

Nanowire Synthesis: From Top-Down to Bottom-Up

The properties of many devices are limited by the intrinsic properties of the materials that compose them.

Functional Biomaterials Synthesized by Double-Head Polymerization Agents

Over the past two decades, the rapid advance of controlled living polymerization (CLP) techniques.

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