Storage:Store at 2-8℃,6 months
Determination of Significance:
D-(-)-quinic acid is found in the bark of cinchona trees and has a strong sour taste. At high humidity, lactones can be formed, which is acutely toxic.
Measurement Principle:
Quinic acid has an absorption peak at 210 nm, and its content can be determined by high-performance liquid chromatography.
Self Provided:
High-performance liquid chromatograph (Polaris C18-A column (4.6×250 mm), ultraviolet detector (VWD)), tabletop centrifuge, adjustable pipette, water bath, mortar/homogenizer, EP tube (2 mL), syringe filter (aqueous), syringe, suction filter, membrane (aqueous, organic), brown vial (50, 1.5 mL), ultrapure water.
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