Scientific Library

Deconvolution of Curry Powder Constituents Using HPLC-ECD

Develop a robust and sensitive HPLC-electrochemical detection (ECD) method for separating non-volatile phenols, flavnoids and related compounds in curry powder.

Measurement of Resveratrol, Kaempferol, Quercetin and Isorhamnetin in Human Plasma

Preliminary data show that HPLC-coulometric array method is capable of sensitive detection of isorhamnetin, kaempferol, quercetin and resveratrol in extracts of human plasma.

Measurement of Dietary Carotenoid Isomers Using HPLC-ECD

This application note examines the use of coulometric array detection with HPLC using a C30 stationary phase for analysis of isomeric forms of carotenoids in animal and plant tissues. HPLC coulometric array ECD can be used both as a complementary a[[...

Analysis of Subtle Changes in Biological Systems Through use of High Resolution, High Accuracy UHPLC Generated Libraries with a Q-Exactive HF Mass Spectrometer

Protein diversity in biological systems is quite large, but short term (<1hour) changes due to a particular stimulus will cause A only subtle changes in very specific proteins expression levels. Excessive sample handling/processing methods often add ...

Metabolic Fingerprinting to Determine Tryptophan Contamination

Ingestion of toxin contaminated food (or food supplements) is responsible for a variety of aggressive, debilitating and often lethal diseases. Many of the toxins are highly modified amino acids or amines and include domoic acid (causing amnesic shell...

Determination of Yohimbine and Related Alkaloids Using HPLC-ECD

Yohimbine is an indolealkylamine alkoloid with chemical similarity to reserpine. Yohimbine has been isolated from Cornanthe johimbe, Rubiaceae and related trees, as well as Rauwolfia serpentina. Both yohimbine and a diastereoisomer, corynanthine, are...

Determination of Vinca Alkaloids in Periwinkle Plants Using HPLC-ECD

The vinca alkaloids consist of the bis-indole derivatives, vinblastine and vincristine isolated from the periwinkle plant, Vinca rosea Linn and the monomeric indole derivative vincamine, which is the major alkaloid of Vinca minor Linn. The vinca alka...

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Knowledge Base Articles

Deconvolution of Curry Powder Constituents Using HPLC-ECD

Measurement of Resveratrol, Kaempferol, Quercetin and Isorhamnetin in Human Plasma

Measurement of Dietary Carotenoid Isomers Using HPLC-ECD

Analysis of Subtle Changes in Biological Systems Through use of High Resolution, High Accuracy UHPLC Generated Libraries with a Q-Exactive HF Mass Spectrometer

Metabolic Fingerprinting to Determine Tryptophan Contamination

Determination of Yohimbine and Related Alkaloids Using HPLC-ECD

Determination of Vinca Alkaloids in Periwinkle Plants Using HPLC-ECD

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