Homocysteine Enzymatic Assay ( Three Vial Liquid Stable Format )

Homocysteine Enzymatic A ssay kit is intended for the in vitro quantitative determination of total L-homocysteine in serum or plasma.

Regulatery Status: FDA 510(k), CE

Product Catalog Number Packaging Method/Format
Product Catalog No: Kit (190 Tests) Pack Size: DZ568A-K Pack Size: R1: 1 x 54 mL
R2: 1 x 11 mL
R3: 1 x 8 mL
Pack Size: Enzyme Cycling/ Liquid Stable
Product Catalog No: Kit (95 Tests) Pack Size: DZ568A-K03 Pack Size: R1: 1 x 27 mL
R2: 1 x 5.5 mL
R3: 1 x 4 mL
Product Catalog No: Kit (135 Tests) Pack Size: DZ568A-K04 Pack Size: R1: 2 x 22 mL
R2: 2 x 3.7 mL
R3: 2 x 2.5 mL
Product Catalog No: Kit (340 Tests) Pack Size: DZ568A-K05 Pack Size: R1: 2 x 45 mL
R2: 2 x 9 mL
R3: 2 x 5.7 mL
Product Catalog No: Kit (120 Tests) Pack Size: DZ568A-KD2 Pack Size: R1: 2 x 16 mL
R2: 2 x 4 mL
R3: 2 x 3.5 mL
Product Catalog No: Calibrator Pack Size: DZ568A-CA5 Pack Size: Cal: 5 x 3 mL vial
Pack Size:
Product Catalog No: Control Pack Size: DZ568A-CON Pack Size: Con: 4 x 3 mL vial
Pack Size:

Category:
Product Features

Enzymatic Homocysteine (Hcy) Assay reagent is a liquid stable system, which provides a fast, accurate cost effective alternative to cumbersome and expensive immunochemical methods. A choice of convenient instrument specific packaging options eliminate reagent transfer for Roche™ Hitachi, Siemens Dimension®, and Beckman Synchron CX, LX and DXC analyzers. Accurate and reliable, the assay features excellent correlation with HPLC and Immunochemical methods with a linear range of 3-50 μmole/L and intra and inter %CV values of < 5.9%. The assay has no significant interference from lipemic and hemolytic substances and eliminates the “carry-over” interference with iron or lipase reagents that can occur with other methods. More significantly, the assay is not interfered by the endogenous cystathionine and therefore can be used with confidence in patients with renal disease.

Assay Principle

The Diazyme Hcy Enzymatic Assay is based on a novel assay principle that assesses the co-substrate conversion product. In the assay, oxidized Hcy is first reduced to free Hcy which then reacts with a co-substrate, SAM, catalyzed by a homocysteine S-methyltransferase. The co-substrate conversion product is amplified by coupled enzymatic cycling reactions. The tHcy level in the sample is directly proportional to the amount of NADH conversion to NAD+ (ΔA 340nm).

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