32 Results for: "derivatisation reagent"

Supplier: Restek

Derivatization reagent by acylation

Supplier: Adipogen

IDA is a reagent for the derivatisation of primary amines.

Supplier: APOLLO SCIENTIFIC

Reagent for derivatisation of amines, alcohols etc, for GC purposes.

Supplier: APOLLO SCIENTIFIC

Useful reagent for the derivatisation of primary amines, etc for GC analysis.

Supplier: APOLLO SCIENTIFIC

Useful reagent for the derivatisation of primary amines, etc for GC analysis.

Supplier: APOLLO SCIENTIFIC

Suitable reagent for the derivatisation of carboxylic acids for ECD and GCMS analysis.

Supplier: Abcam

Derivatisation reagent. Fluorescent label for amine modification and protein conjugation. Also used for labeling synthetic peptides for high-throughput detection.

Supplier: Adipogen

7-(Diethylamino)-coumarin-3-carboxylic acid is a reagent for the derivatisation of amines and proteins. It has also been used for labelling synthetic peptides for high-throughput detection.

Supplier: Eagle Biosciences

The Vitamin B6 HPLC Assay Kit is intended to detect vitamin B6 in EDTA-blood.

Supplier: Eagle Biosciences

The Homocysteine HPLC Assay is intended to determine homocysteine in plasma,serum.

Supplier: Adipogen

fluorescent reagent for use in circular dichroic exciton method for derivatisation of hydroxyl-groups under mild conditions. The absorption at 406 nm is futher in the red than for reagents like naphthoylimidazole. The reagent offers high sensitivity through a high molar extinction coefficient.

Supplier: Abcam

with NO₂- under acidic conditions to form a detectable fluorescent naphthotriazole. The reaction proceeds at acidic pH at room temperature. Fluorescence is monitored following the addition of NaOH, which raises pH, resulting in lower background and increased sensitivity. Also used as a derivatisation-reagent for the determination of selenium at low detection limits.

Supplier: Invitrogen

The NHS-Azide and NHS-Phosphine Reagents are amine-reactive compounds for derivatising primary amines of proteins or amine-coated polymer surfaces. Once a protein or surface is azide- or phosphine-labelled, the two components are mixed for effective and stable conjugation. Phosphine groups react with azides via a Staudinger reaction to produce an aza-ylide intermediate that is trapped to form a stable, covalent amide bond. Because phosphines and azides are absent from biological systems, there is minimal background labelling of macromolecules found in cells or lysates.

Supplier: Adipogen

The 2,3-diaminonaphthalene (DAN) assay is routinely used in the determination of nitrite/nitrate levels in biological fluids and cellular extracts as one indicator of nitric oxide activity. The assay, as reported by Misko, uses the reaction of DAN with NO2- under acidic conditions to form a detectable fluorescent naphthotriazole. The reaction proceeds at acidic pH at room temperature. Fluorescence is monitored following the addition of NaOH, which raises pH, resulting in lower background and increased sensitivity (Ex/Em: ~365/415nm). However, detection at 450nm is recommended to avoid fluorescent blanks and increase sensitivity. The fluorescent background of DAN is low for maximum sensitivity. Detection limits of NO achieved by this method are in the high-pM range. 2,3-Diaminonaphtaline (DAN) is used as a derivatisation-reagent for the determination of selenium at low detection limits. The 4,5-benzopiaselenol-complex can be quantified by photometry or GC.

Supplier: TCI America

[Trimethylsilylating Reagent, for NH2 compounds]
Form: Clear Liquid
Color: Colorless
Flash Point (°C): 10
Storage Temperature: 0-10°C

Supplier: TCI America

N,O-Bis(trimethylsilyl)acetamide Kit TMS-BA (25% in Acetonitrile) 1 mL × 8 / Reaction vial, capacity 2 mL × 8 [Trimethylsilylating Reagent, for NH2 compounds]

Supplier: Restek

Acylation derivatization reagent.

Supplier: Restek

Silylation derivatization reagent.

Supplier: Restek

Acylation derivatization reagent.

Supplier: APOLLO SCIENTIFIC

GC derivatising agent for silylation of hydroxy, carboxy, thio & primary and secondary amines.

Supplier: Thermo Scientific Chemicals

N-(tert-Butyldimethylsilyl)-N-methyltrifluoroacetamide (MTBSTFA) 98%

Supplier: TCI America

Boiling point (°C): 73
Melting point (°C): -24
Flash Point (°C): 42

Supplier: TCI America

Form: Clear Liquid
Boiling point (°C): 73
Melting point (°C): -24
Flash Point (°C): 42

Supplier: Matrix Scientific

MF=C9H18F3Nosi MW=241.33 Cas=77377-52-7 MDL=MFCD00009671 ,25G

Supplier: Pickering Labs

Vector PCX provides the selectivity and sensitivity required for most standard post-column applications while being reliable and easy to use. Since Vector PCX does not have a column oven it is important to use the HPLC column oven to ensure stable column temperature and prevent retention time drifts and separation problems.

Supplier: TCI America

[Derivatizing Reagent for GC] CAS Number: 25561-30-2 MDL Number: MFCD00008269 Molecular Formula: C8H18F3NOSi2 Molecular Weight: 257.40 Form: Clear Liquid Color: Colorless Boiling point (°C): 142 Melting point (°C): -41 Flash Point (°C): 7 Specific Gravity (20/20): 0.97

Supplier: TCI America

[for Gas Chromatography]
CAS Number: 10416-59-8
MDL Number: MFCD00008270
Form: Clear Liquid
Color: Colorless
Flash Point (°C): 10
Storage Temperature: 0-10°C

Supplier: Thermo Scientific Chemicals

N-(tert-Butyldimethylsilyl)-N-methyltrifluoroacetamide (MTBSTFA) 97%

Supplier: Pickering Labs

Pickering Laboratories offers the only instrumentation optimized for the analysis of amino acids, carbamates, glyphosate, mycotoxins, antibiotics and many other applications. Each component is specifically designed to enhance sensitivity and selectivity. Only Pickering Laboratories offers complete application support, including chemicals, columns, methods and post-column systems.

Supplier: Invitrogen

These Iodination Beads are polystyrene beads that are coated with an oxidizing reagent, which provides efficient activation of ¹²⁵I for protein or peptide iodination procedures.