139 Results for: "ion pair"

Supplier: Merck

1-Butanesulphonic acid sodium salt, LiChropur™ for ion pair chromatography, Supelco®

Supplier: BIOSS INC

Apical membrane anion-exchanger with wide epithelial distribution that plays a role as a component of the pH buffering system for maintaining acid-base homeostasis. Acts as a versatile DIDS-sensitive inorganic and organic anion transporter that mediates the uptake of monovalent anions like chloride, bicarbonate, formate and hydroxyl ion and divalent anions like sulfate and oxalate. Function in multiple exchange modes involving pairs of these anions, which include chloride-bicarbonate, chloride-oxalate, oxalate-formate, oxalate-sulfate and chloride-formate exchange. Apical membrane chloride-bicarbonate exchanger that mediates luminal chloride absorption and bicarbonate secretion by the small intestinal brush border membrane and contributes to intracellular pH regulation in the duodenal upper villous epithelium during proton-coupled peptide absorption, possibly by providing a bicarbonate import pathway. Mediates also intestinal chloride absorption and oxalate secretion, thereby preventing hyperoxaluria and calcium oxalate urolithiasis. Transepithelial oxalate secretion, chloride-formate, chloride-oxalate and chloride-bicarbonate transport activities in the duodenum are inhibited by PKC activation in a calcium-independent manner. The apical membrane chloride-bicarbonate exchanger provides also a major route for fluid and bicarbonate secretion into the proximal tubules of the kidney as well as into the proximal part of the interlobular pancreatic ductal tree, where it mediates electrogenic chloride-bicarbonate exchange with a chloride-bicarbonate stoichiometry of 1:2, and hence will dilute and alkalinise protein-rich acinar secretion. Mediates also the transcellular sulfate absorption and oxalate secretion across the apical membrane in the duodenum and the formate ion efflux at the apical brush border of cells in the proximal tubules of kidney.

Supplier: Thermo Fisher Scientific

1-Hexanesulphonic acid sodium salt, anhydrous 99+% for ion pair chromatography

Supplier: Merck

1-Pentanesulphonic acid sodium salt, LiChropur™ for ion pair chromatography, Supelco®

Supplier: Merck

Tetrabutylammonium hydrogen sulphate ≥99.0% for ion pair chromatography, Supelco®

Supplier: Merck

1-Heptanesulphonic acid sodium salt, LiChropur™ for ion pair chromatography, Supelco®

Supplier: Merck

1-Propanesulphonic acid sodium salt monohydrate ≥99.0% (by titrimetric analysis) for ion pair chromatography, Supelco®

Supplier: Merck

Dodecyltrimethylammonium hydrogen sulphate ≥99.0% (by titrimetric analysis), LiChropur™ for ion pair chromatography, Supelco®

Supplier: Merck

Tetrabutylammonium dihydrogen phosphate for ion pair chromatography, Supelco®

Supplier: Thermo Fisher Scientific

1-Butanesulphonic acid sodium salt, anhydrous 99+% for ion pair chromatography

Supplier: Merck

Sodium dodecyl sulphate (SDS), LiChropur™ for ion pair chromatography, Supelco®

Supplier: MP BIOMEDICALS

Sodium hexanesulfonate is a low molecular weight alkylsulfonate that is used as an ion pairing reagent for HPLC and as an anionic surfactant. The anionic sulfonate counterion permits the separation and resolution of positively charged analytes. Because of its low molecular weight, it will not form micelles in solution and therefore has no CMC value.
For ion-pair chromatography. Sodium hexanesulfonate is utilized in the analysis of small organic compounds, and pharmaceutical products and metabolites by such techniques as HPLC.

Supplier: Merck

1-Dodecansulphonic acid sodium salt, LiChropur™ for ion pair chromatography, Supelco®

Supplier: Thermo Fisher Scientific

Ion-pair reagent for HPLC analysis

Supplier: HACH

ISE standards are used to calibrate ion selective electrode measurement systems by coresponding the electrode output with the concentration of the analyte. Pairs of standards with concentrations that differ by a factor of ten are used for analysis.

Supplier: Merck

Dilute content from one ampule (~0.3M) to 1L with HPLC grade water.

Supplier: Merck

Chelex® 100 Chelating Resin is a weak cation exchange resin that has high selectivity, approximately 5,000:1, for copper, iron, and other heavy metal ions over monovalent cations. Chelex 100 Resin is made of a styrene divinylbenzene copolymer containing paired iminodiacetate ions, which act as chelating groups in binding polyvalent metal ions.

Supplier: MP BIOMEDICALS

Sodium octyl sulphate is an anionic detergent and ion pairing reagent that is used in HPLC. The anionic sulphonate counterion permits the separation and resolution of positively charged analytes.

Supplier: MP BIOMEDICALS

Sodium 1-heptanesulfonate is a commonly used ion pairing reagent for HPLC, including analyses of peptides and proteins. It has also been used in high performance capillary electrophoresis analysis of peptides.

Supplier: VARIAN

These Pursuit™ columns are ideal for analysing lead compounds and biological samples. The need for ion pairing agents such as TFA is often eliminated, thus maximising the performance of single and parallel multi-channel LC/MS systems.

Supplier: Thermo Fisher Scientific

Hypersil™ SAS (C1) columns have a short alkyl chain (C1), making it the least retentive of Hypersil™ alkyl bonded phases. They exhibit good stability for a short chain bonded phase. They exhibit unique selectivity for polar analytes and multi-functional compounds, and hence can be used in ion-pair separations.

Supplier: Thermo Fisher Scientific

These columns are designed for ion pairing reversed phase HPLC (IP-RPLC) analysis of aminoglycoside antibioticss, including drug purity characterisation and quantification, therapeutic drug monitoring and residual control testing in meat / poultry. The Acclaim™ AmG C18 stationary phase is based on a proprietary C18 bonding technology that provides extremely high stability towards acidic conditions.

Supplier: PROSCI

Neuronal acetylcholine receptor subunit beta-3(CHRNB3) is a cell membrane protein and belongs to the ligand-gated ion channel (TC 1.A.9) family. CHRNB3 seems to be composed of two different type of subunits: alpha and beta. The CHRNB3 are (hetero) pentamers composed of homologous subunits. The subunits that make up the muscle and neuronal forms of CHRNB3 are encoded by separate genes and have different primary structure. There are several subtypes of neuronal CHRNB3 that vary based on which homologous subunits are arranged around the central channel. They are classified as alpha-subunits if like muscle alpha-1, they have a pair of adjacent cysteines as part of the presumed acetylcholine binding site. Subunits lacking these cysteine residues are classified as beta-subunits.

Supplier: Merck

1-Octanesulphonic acid sodium salt monohydrate ≥99.0% (by titrimetric analysis) for ion pair chromatography, Supelco®

Supplier: Merck

Dilute contents of one ampule (~0.3 M) to 1 L with HPLC grade water to obtain a 0.005 M eluent solution.

Supplier: ANTIBODIES.COM

Llama Interferon gamma Matched Antibody Pair Kit includes an unlabeled monoclonal capture antibody, biotin-labeled monoclonal detect ion antibody, Streptavidin-AP, recombinant llama Interferon gamma ELISA standard, and standard reconstitution buffer. 1 * 1.920 Tests

Supplier: ANTIBODIES.COM

Mouse Interferon gamma Matched Antibody Pair Kit includes an unlabeled monoclonal capture antibody, biotin-labeled monoclonal detect ion antibody, Streptavidin-AP, recombinant mouse Interferon gamma ELISA standard, and standard reconstitution buffer. 1 * 1.920 Tests

Supplier: ANTIBODIES.COM

Llama Interferon gamma Matched Antibody Pair Kit includes an unlabeled monoclonal capture antibody, biotin-labeled monoclonal detect ion antibody, Streptavidin-AP, recombinant llama Interferon gamma ELISA standard, and standard reconstitution buffer. 1 * 576 Tests

Supplier: ANTIBODIES.COM

Mouse Interferon gamma Matched Antibody Pair Kit includes an unlabeled monoclonal capture antibody, biotin-labeled monoclonal detect ion antibody, Streptavidin-HRP, recombinant mouse Interferon gamma ELISA standard, and standard reconstitution buffer 1 * 1.920 Tests

Supplier: ANTIBODIES.COM

Human Interferon gamma Matched Antibody Pair Kit includes an unlabeled monoclonal capture antibody, biotin-labeled monoclonal detect ion antibody, Streptavidin-HRP, recombinant human Interferon gamma ELISA standard, and standard reconstitution buffer 1 * 1.920 Tests