LINEAR CHEMICALS protein reagents

Storage temperature: 2 °C - 8 °C

DIRECT Enzymatic colorimetric method ENDPOINT PRINCIPLE The assay is based on a modified polyvinyl sulfonic acid (PVS) and polyethyleneglycolmethylether (PEGME) coupled classic precipitation method with the improvements in using ...

Storage temperature: 2 °C - 8 °C

... method ENDPOINT PRINCIPLE The method is based on the specific binding of bromocresol green (BCG), an anionic dye, and the protein at acid pH with the resulting shift in the absorption wavelength of the complex. The ...

Storage temperature: 2 °C - 8 °C

TOTAL Colorimetric method ENDPOINT PRINCIPLE The method is based on the specific binding of cresolftalein complexone (OCC), a metallochromic indicator, and calcium at alkaline pH with the resulting shift in the absorbtion wavelength ...

Storage temperature: 2 °C - 8 °C

... assay is based on the reducing ability of the ketoamines formed from the non-enzymatic condensation products of glucose and proteins (fructosamines), to reduce tetrazolium salts to a colored dye in alkaline solution. ...

Storage temperature: 2 °C - 8 °C

TOTAL Colorimetric method ENDPOINT PRINCIPLE The Fe (II) of all forms of hemoglobin, with the exception of sulfohemoglobin, is oxidized to the Fe(III) of methemoglobin which, in turn, reacts with ionized cyanide (CN-) to form ...

Storage temperature: 2 °C - 8 °C

... red-molibdate (PRM) and the basic amino groups of urine and cerebrospinal fluid (CSF) proteins. The intensity of the colored complex formed is proportional to the concentration of protein in the sample.

Storage temperature: 2 °C - 8 °C

... and the peptide bonds of the proteins in alkaline solutions to form a violet colored complex whose absorbance is measured photometrically. The intensity of the color produced is proportional to the concentration of protein ...

Storage temperature: -18 °C

... Alpha), B.1.351 (Beta) and P.1 (Gamma). PRINCIPLE OF THE TEST: A screening assay for the detection of SARS-CoV-2 spike protein mutations. Each mutation is related to one specific dye: del69/70 (FAM), del241-243 ...

Storage temperature: -18 °C

... SARS-CoV-2 spike protein mutations, E484K, present in P.1 (Gamma) and B.1.351 (Beta), and N501Y, present in B.1.1.7(Alpha), B.1.351 (Beta) and P.1 (Gamma). PRINCIPLE OF THE TEST: A screening assay for the detection ...

Storage temperature: -18 °C

... detection of SARS-CoV-2 spike protein mutations, L452R and P681R, present in lineages B.1.167.2 (Delta), B.1.617.1 (Kappa) and B.1.617.3. PRINCIPLE OF THE TEST: A screening assay for the detection of SARS-CoV-2 spike ...