Farklı Cousinia türlerinde psödo taraksesterol (ψ-taraksasterol) bileşiğinin HPLC-PDA ile miktar tayini

Bazı evcil hayvanlarda albuminin elektroforetik ve boya bağlanma yöntemleri ile karşılaştırmalı tayini ve spesifitelerinin belirlenmesi

Özet: Günümüzde albumin tayininde genellikle bromocreosol purple (BCP) ve bromocreosol green (BCG) gibi fitalein boyalar kullanılmaktadır. Ancak bu yöntemlerde albuminin boya bağlanma affinitesi türlere göre farklılıklar göstermekte, preanalitik ve analitik faktörler de sonuçlar üzerinde etkili olmaktadır. Bu çalışmada domuz, sığır ve koyunda albumin düzeylerinin BCP ve BCG boya bağlanma yöntem...

HPLC-PDA analysis of brominated indirubinoid, indigoid, and isatinoid dyes

The Purples and Violets of Phoenicia and of the Bible, the most royal and sacred of all ancient textile dyes, were produced from certain species of Levantine mollusks. The colors fashioned from these sea snails were known as Tyrian or Royal Purple and Biblical Blue. These Mediterranean Muricidae marine creatures, whose common familial approbation is Murex, were in use for the industrial biochem...

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Hydroxymethylfurfural Content and Sugar Profile of Honey Available in Bangladesh Using Validated HPLC-PDA and HPLC-RID

Background: Honey has a lot of reputation because of its supposed medicinal properties. In this study, Hydroxymethylfurfural (HMF), sugars, and Fructose/Glucose ratio of honey in Bangladesh were assessed for adulteration and authenticity evaluation. Methods: Seventy honey samples collected from different districts of Bangladesh were analyzed by High Performance Liquid Chromatography (HPLC) for...

Detection of isorhamnetin glycosides in extracts of apples (Malus domestica cv. "Brettacher") by HPLC-PDA and HPLC-APCI-MS/MS.

Extracts of apple fruits (Malus domestica cv. "Brettacher") were analysed by HPLC with photodiode array detection. An unknown peak was monitored displaying the same retention time as isorhamnetin 3-O-glucoside. Preliminary identification of the isorhamnetin aglycone was performed by comparison of UV spectral data of the unknown compound with a reference substance. Using atmospheric pressure che...