Voltage-step pulsed electromembrane extraction followed by high performance liquid chromatography analysis for simultaneous determination of paracetamol and codeine

2021 ◽  
pp. 1-9
Author(s):  
Maryam Sadeghi ◽  
Lida Fotouhi ◽  
Shahram Seidi
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Simultaneous Determination ◽  
High Performance ◽  
Voltage Step ◽  
Chromatography Analysis ◽  
Electromembrane Extraction ◽  
Performance Liquid Chromatography Analysis

scholarly journals Flavonoid Quantification in Onion by Spectrophotometric and High Performance Liquid Chromatography Analysis

HortScience ◽  
2002 ◽  
Vol 37 (4) ◽  
pp. 682-685 ◽  
Author(s):  
Kevin A. Lombard ◽  
Emmanuel Geoffriau ◽  
Ellen Peffley
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
High Performance ◽  
Hplc Analysis ◽  
Correlation Coefficients ◽  
Cost Effective ◽  
Chromatography Analysis ◽  
Cost Effective Method ◽  
Performance Liquid Chromatography Analysis

Direct spectrophotometric determination of quercetin content in onions (Allium cepa L.) was investigated as a possible alternative to high-performance liquid chromatography (HPLC) analysis. Quercetin content in five onion varieties was monitored at 362 nm and quantified using simple spectrophotometric and HPLC methods. HPLC revealed that 3,4'-Qdg and 4'-Qmg comprised up to 93% of total flavonol content detected in the studied varieties. These major quercetin conjugates combined (3,4'-Qdg + 4'-Qmg) and total flavonol conjugates quantified by HPLC correlated closely with spectrophotometer values. Correlation coefficients were 0.96 (P < 0.0001) for 3,4'-Qdg + 4'-Qmg and 0.97 (P < 0.0001) for total flavonol conjugates in onion. Simple spectrophotometric procedure proved to be a valid, efficient, and cost-effective method for the quantification of total quercetin in onion. Chemical names used: quercetin-3,4'-O-diglucoside (3,4'-Qdg); quercetin-4'-O-glucoside (4'-Qmg).

Magnetic three-dimensional graphene solid-phase extraction coupled with high performance liquid chromatography for the determination of phthalate esters in fruit juice

2014 ◽  
Vol 6 (15) ◽  
pp. 5659-5665 ◽  
Author(s):  
Lin Hao ◽  
Chenhuan Wang ◽  
Xiaoxing Ma ◽  
Qiuhua Wu ◽  
Chun Wang ◽  
...  
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
High Performance ◽  
Fruit Juice ◽  
Solid Phase ◽  
Phthalate Esters ◽  
Three Dimensional ◽  
Chromatography Analysis ◽  
Performance Liquid Chromatography Analysis

Three-dimensional graphene-based magnetic nanocomposite was synthesized and used as an effective adsorbent for the extraction of phthalate esters from fruit juice prior to high performance liquid chromatography analysis.

Sign in / Sign up

Export Citation Format

Share Document