Results 231 to 240 of about 54,757 (260)

Determination of Daminozide Residues in Apple Pulp Using HPLC−DAD-UV

Journal of Agricultural and Food Chemistry, 2001
This paper reports an HPLC-UV method to determine daminozide residues in apple pulps adopting the recently introduced EU limit of 0.01 mg/kg for baby food preparation (Commission Directive 1999/39/CE). The method is based on alkaline hydrolysis of daminozide to N',N'-dimethylhydrazine (UDMH), which is recovered by distillation and subsequently ...
BICCHI, Carlo, CORDERO, Chiara Emilia Irma, RUBIOLO, Patrizia, A. OCCELLI   +3 more
openaire   +3 more sources

Optimization of an HPLC-DAD Method for Quercetin Detection

2023
High-performance liquid chromatography (HPLC) is one of the most used liquid chromatographic techniques owing to its versatility that allows an optimal resolution. Quercetin (QUE), a polyphenol, has received increasing attention due to its antioxidant properties. Efforts have been made to overcome the traditional poor oral bioavailability of quercetin,
openaire   +1 more source

HPLC-DAD fingerprints combined with chemometric techniques for the authentication of plucking seasons of Laoshan green tea

Food Chemistry, 2021
Xiao-Li Yin, Hui-Wen Gu, Shu-Dong Wei
exaly  

Validacija metode HPLC-DAD za kvantitativno određivanje nitrofurantoina

2019
Validacija analitičkih metoda ima važnu ulogu u osiguravanju usluge ili proizvoda zadovoljavajuće i pouzdane kvalitete uvjetovane definiranim normama. Ona omogućuje dobivanje korisnih analitičkih podataka visoke točnosti i pouzdanosti nekog mjernog sustava. Cilj ovog rada bio je validirati metodu za kvantitativno određivanje nitrofurantoina tekućinskom
openaire   +2 more sources

[Study on HPLC-DAD Fingerprint of Xiaoying Jiedu Decoction].

Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials, 2016
Based on backtracking method, identification and quality evaluation of Xiaoying Jiedu Decoction (XYJDD) by HPLC fingerprint analysis were carried out.HPLC-DAD fingerprint of XYJDD was conducted with Dikma Platisil ODS C18 column (250 mm x 4.6 mm, 5 µm) and gradient elution with the mobile phase consisting of acetonitrile-(0.1% phosphoric acid-0.1 ...
Ying, Cai, Yu, Lu, Rong-li, Qiu, Chong-fa, Wang, Lin, Gong, Yong-zhang, Ji   +5 more
openaire   +1 more source

Determinazione HPLC-DAD dell’antibiotico tylosina in siero bovino

2008
MERCOLINI, LAURA, M. Consorti, GHEDINI, NADIA, RAGGI, MARIA AUGUSTA   +3 more
openaire   +4 more sources

Determination of Sennosides in Cassia angustifolia by HPLC–DAD

Revista Brasileira de Farmacognosia, 2023
Vitor Hugo Migues, Jorge Mauricio David, Angélica Ferraz Gomes, Juceni Pereira David   +3 more
openaire   +1 more source

High-throughput screening for amyloid-β binding natural small-molecules based on the combinational use of biolayer interferometry and UHPLC−DAD-Q/TOF-MS/MS

Acta Pharmaceutica Sinica B, 2022
Minsong Guo, Fengdan Zhu, Betty Yuen-Kwan Law   +2 more
exaly  

Nar suyu içerisindeki fenolik asitlerin HPLC-DAD ile belirlenmesi

2017
In this study, fivephenolic acids, gallic, chlorogenic, caffeic, p-coumaric and ferulic acid weredetermined in freshly squeezed pomegranate juice, commercial pomegranate juiceand pomegranate juice concentrate beverages. For this purpose, an analytical method using high-performance liquidchromatography (HPLC), with a combination of photodiode array ...
KARAKAPLAN, Mürüvvet, ÖZCAN, Mustafa
openaire   +1 more source

Comparative evaluation of an ISO 3632 method and an HPLC-DAD method for safranal quantity determination in saffron

Food Chemistry, 2017
Gonzalo L Alonso, Christos S Pappas, Moschos G Polissiou   +2 more
exaly