Product instruction:

酒 酒 石 即, 2,3-dihydroxybutyrate, is a kind of carboxylic acid [123 ], Existing in a variety of plants, such as grapes and tamarind, is also one of the main organic acids in wines. As the antioxidant added to the food, the food can have a sour taste.

Tobolic acid has an absorption peak at 210 nm and can be used to determine its content using HPLC.

\u0026 nbsp; Instruments and reagents needed in the test

:

High performance liquid chromatograph (Polaris C18- A column (4.6 × 250 mm), ultraviolet detector (VWD)), desktop centrifuge, adjustable pipette, mortar / homogenizer, EPT (2 mL), needle filter (water system), syringe , Filter, filter (water, organic system), brown into S bottles (50, 1.5 mL), super pure water.

\u0026 nbsp; Product content:

Extract: liquid 80ml \u0026 nbsp; × 1 bottle, 4 Save at ° C.

Reagent 1: Liquid 2 \u0026 NBSP; ML \u0026 NBSP; × 1 bottle, 4 ° C.

Reagent 2: Powder × 2 bottles, 4 ° C preserved.

Standard: Powder × 1 bottle, 4 ° C protected from light. 2 ml of distilled water was added to be prepared to prepare 10

Mg / ml tartaric acid standard solution, 4 ° C sealed, and avoid direct sunlight.

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