Plant Threonine(Thr)Content HPLC Assay Kit,50T

Brands:Solarbio

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Place of Origin:China

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Shelf Life:1 year under -4℃

Storage:4℃

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Research Areas:HPLC Assay Kit

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Product Description

L-Threonine is an essential amino acid for humans， which cannot be synthesized by the body and must be obtained from food. L-Threonine is an important amino acid in the nervous system and also plays a key role in porphyrin and fat metabolism， helping to prevent fatty accumulation in the liver. In addition， it can be used in the treatment of intestinal disorders and dyspepsia， as well as for alleviating anxiety and mild depression.

L-Threonine lacks ultraviolet (UV) absorption groups and strong fluorescent properties， and thus cannot be directly determined by conventional detectors. This kit employs a pre-column derivatization method: under weakly alkaline conditions， OPA (o-phthalaldehyde) and 3-MPA (3-mercaptopropionic acid) specifically react with the amino group of L-Threonine to form fluorescent derivatives. Upon excitation with ultraviolet light， these derivatives emit fluorescence at a longer wavelength than the excitation light. The fluorescence intensity is proportional to the L-Threonine concentration with a high response， making this method suitable for automated batch analysis by HPLC. This kit is specifically designed for the rapid and efficient extraction and quantification of L-Threonine in plant samples.

Instruments and Reagents Required for the Assay

High-performance liquid chromatograph (HPLC) equipped with a C18 column (4.6 × 250 mm， water tolerance ≥95%) and a fluorescence detector (FLD); ultrasonic cleaner; vortex mixer; electronic balance; low-temperature high-speed centrifuge (4°C， 10，000 r/min); mortar/homogenizer; adjustable pipettes; syringe; organic membrane filter; aqueous membrane filter; chromatographic-grade methanol， ethanol， and acetonitrile， etc.

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