78306 Results for: "LC-MS"

Supplier: BioVendor

Guanylin is thought to modulate intestinal water/electrolyte transport in a paracrine mode reported the nucleotide sequence of the gene, the characteristics of its circulating molecular form, and its localization in enterochromaffin cells of the gut. The gene, approximately 2.6 kb in size, consists of 3 exons interrupted by 2 introns. The hormonal form of guanylin is a 94-amino acid peptide with a molecular mass of 10.3 kDa. Guanylin is synthesized by gut enterochromaffin cells as a prohormone of 115 amino acids and is processed to the molecular form of 94 amino acids circulating in the blood. Total 104 AA. MW: 11,5 kDa (calculated). UniProtKB acc.no. Q02747 (Val22-Cys115). N-terminal His-tag (10 extra AA). Protein identity confirmed by LC-MS/MS.

Supplier: Invitrogen

Thermo Scientific Pierce™ Trifluoroacetic Acid (TFA), Sequencing grade is manufactured and tested to meet strict specifications that ensure superior performance for use as an ion-pairing agent in reverse-phase peptide separations.

Supplier: Zymo Research

Control DNA for 5-mC and 5-hmC detection and/or quantitation applications.

Supplier: Honeywell Research Chemicals

Chromasolv* Hexane, Purity: >/-99.7%, CAS Number: 110-54-3, High Purity Solvent, Molecular formula: CH3(CH2)4CH3, Molar Weight: 86.18 g/mol, Synonym: n-Hexane, Container: Glass Bottle, Application: for LC-NMR, size: 2.5L

Supplier: BioVendor

Total 154 AA. MW: 18.2 kDa (calculated). UniProtKB acc.no. P43313 (Met1-Ala144). N-terminal His-tag (10 extra AA). Protein identity confirmed by LC-MS/MS.

Supplier: Restek

EPA method 8330 is used to measure explosives residues in water and soil samples, using HPLC with UV detection. Target analytes are nitroaromatic and nitramine explosives and their degradation products. Obtaining pure, neat compounds for Method 8330 reference standards can be very difficult. To ensure the highest quality standards, Restek's Quality Control (QC) lab confirms the identity and purity of mixture components and solvents using one or more of the following techniques: GC-FID, HPLC, GC-ECD, GC-MS, LC-MS, refractive index, and melting point.

Supplier: Honeywell Research Chemicals

LabReady™ Solvent Blends

Supplier: Thermo Scientific

Resolve a wide variety of polar and non-polar analytes with Thermo Scientific™ Acclaim PolarAdvantage (PA) columns.

Supplier: SPEX CERTIPREP LLC

Pesticides, PCBs and Herbicides

The EPA is tasked with the monitoring of environmental systems as they pertain to contamination and human health. The methods issued by the EPA are created to respond to specific toxins or persistent organic pollutants (POPs) found in environmental samples such as soil, source water, drinking water, and waste. In particular, pollutants such as polychlorinated biphenyls (PCBs), which were in widespread industrial use up until their restriction, are of concern due to their stable and persistent nature in the environment. Another group of chemicals of high concern is the hundreds of commercial pesticides and herbicides in use in the world today. Pesticides, from algaecides to virucides, are used in large quantities in industrial and private agriculture. The concern over human pesticide exposure over the past few decades has led to extensive monitoring of these pesticides. It has been reported that over 98% of insecticides and 95% of herbicides affect areas other than their intended target product. It is essential that monitoring agencies have accurate standard mixes to measure the pesticide levels in the environment.

Many new pesticides are now being tested using highly sensitive LC/MS techniques, in addition to traditional GC techniques, to determine minute amounts of residue in environmental samples and food products.

At SPEX CertiPrep, we facilitate ease of monitoring and testing of pesticides by creating pesticide test mixes to suit your monitoring needs. SPEX CertiPrep is the leader in offering pesticide standards designed to work within EPA, AOAC and FDA analytical testing methods using all of the leading analytical techniques: LC, LC/MS, GC, and GC/MS. Many pesticide standard mixes are readily available in our catalog along with a large list of single pesticide standards. In addition, custom pesticide mixes can be made to your specifications to create a mix that meets your needs.

US EPA Method 8082 is an analytical method for the monitoring of PCBs in environmental samples by GC/ECD or GC/ELCD

Supplier: Honeywell Research Chemicals

Honeywell LabReady™ Solvent Blends eliminate contamination or exposure that might occur from blending solvents in your own lab. These, ready-to-use, mobile phase blends ensure consistency, accuracy and safety. Available in 2 levels of purity: LabReady™ HPLC & LabReady™ LC-MS

Supplier: Hamilton

Hamilton Company offers one of the most comprehensive selections of chromatography columns in the industry.

Supplier: Phenomenex

Cleanert® TPT® constitutes three type of materials, which employ different mechanisms to get rid of the interferences such as colorants, organic acids, polyphenols as well as nonpolar matrix.

Supplier: Thermo Scientific

Fast ion-exchange separation and protein purification is possible using the Thermo Scientific™ ProSwift ion exchange (IEX) columns.

Supplier: BioVendor

Total 162 AA. MW: 18.6 kDa (calculated). UniProtKB acc. no. P13232 (Glu26-His177). N-terminal His-tag (10 extra AA). Protein identity confirmed by LC-MS/MS.

Supplier: Thermo Scientific

Run protein separations at exceptionally high flow rates with Thermo Scientific™ ProSwift RP columns.

Supplier: SPEX CERTIPREP LLC

Pesticides, PCBs and Herbicides

The EPA is tasked with the monitoring of environmental systems as they pertain to contamination and human health. The methods issued by the EPA are created to respond to specific toxins or persistent organic pollutants (POPs) found in environmental samples such as soil, source water, drinking water, and waste. In particular, pollutants such as polychlorinated biphenyls (PCBs), which were in widespread industrial use up until their restriction, are of concern due to their stable and persistent nature in the environment. Another group of chemicals of high concern is the hundreds of commercial pesticides and herbicides in use in the world today. Pesticides, from algaecides to virucides, are used in large quantities in industrial and private agriculture. The concern over human pesticide exposure over the past few decades has led to extensive monitoring of these pesticides. It has been reported that over 98% of insecticides and 95% of herbicides affect areas other than their intended target product. It is essential that monitoring agencies have accurate standard mixes to measure the pesticide levels in the environment.

Many new pesticides are now being tested using highly sensitive LC/MS techniques, in addition to traditional GC techniques, to determine minute amounts of residue in environmental samples and food products.

At SPEX CertiPrep, we facilitate ease of monitoring and testing of pesticides by creating pesticide test mixes to suit your monitoring needs. SPEX CertiPrep is the leader in offering pesticide standards designed to work within EPA, AOAC and FDA analytical testing methods using all of the leading analytical techniques: LC, LC/MS, GC, and GC/MS. Many pesticide standard mixes are readily available in our catalog along with a large list of single pesticide standards. In addition, custom pesticide mixes can be made to your specifications to create a mix that meets your needs.

US EPA Method 531 is an analytical method for the monitoring of n-methylcarbamoyloximes and n-methylcarbamates in drinking water and ground water by HPLC and a fluorescence detector

Supplier: Agilent Technologies

The Multiple Affinity Removal LC Column – Mouse 3 is designed as a simple way to remove THREE interfering high-abundant proteins from mouse plasma samples.

Supplier: Thermo Scientific

Acclaim Surfactant Plus is a new generation of columns offering improved performance and higher throughput for analyzing surfactants.

Supplier: Honeywell Research Chemicals

Acetonitrile, Purity: >/= 99.9%, Grade: chromasolv, CAS Number: 75-05-8, Molecular formula: CH3CN, Molar mass: 41.05 g/mol, Synonyms: ACN, Methyl cyanide, Tested for UHPLC-MS, High Purity Solvent, Appearance/color: Colorless, Size: 2L( gl

Supplier: AGILENT TECHNOLOGIES, INC (CSD)

Fittings made of different materials to ensure reliable sealing and optimal performance in your LC.

Supplier: Thermo Scientific

This is the standard column for high-resolution, high-sensitivity protein identification for proteomics and biomarker discovery and verification.

Supplier: Restek

Restek's FluoroPhenyl phase offers chromatographers the ability to run in reversed-phase or HILIC mode for a variety of compounds.

Supplier: Restek

Fluid resistor technology eliminates adjustments to capillary tubing for optimizing split ratio. Wide range of interchangeable resistors available.

Supplier: Invitrogen

The Pierce™ Dimethylsulfoxide (DMSO) is a sequencing-grade preparation with high purity for use in traditional amino acid analyzers and other high-volume applications.

Supplier: Avantor

Avantor® ACE® C18-300 columns provide great reproducibility and column lifetime. These stainless steel columns are available in a wide range of particle sizes and dimensions from capillary to preparative. These columns are designed for a wide range of chromatographic applications, to provide great performance with acidic, basic and neutral molecules.

Supplier: Promega Corporation

Mass spectrometry-compatible yeast and human protein extracts are designed specifically for mass spectrometry applications. The extracts are predigested and cleaned up by solid-phase extraction for immediate use in liquid chromatography/mass spec analysis

Supplier: Promega Corporation

Mass spectrometry-compatible yeast and human protein extracts are designed specifically for mass spectrometry applications. The extracts are predigested and cleaned up by solid-phase extraction for immediate use in liquid chromatography/mass spec analysis

Supplier: Thermo Scientific

Run protein separations at exceptionally high flow rates with Thermo Scientific™ ProSwift RP columns.

Supplier: Restek

The Ultra Carbamate column was designed specifically for carbamates analysis.

Supplier: Thermo Scientific

Fast ion-exchange separation and protein purification is possible using the Thermo Scientific™ ProSwift ion exchange (IEX) columns.