scholarly journals Comparison of High-Performance Ion Chromatography and absorptiometric methods for the determination of phytic acid in food samples

Analusis ◽  
1998 ◽  
Vol 26 (10) ◽  
pp. 396-399 ◽  
Author(s):  
P. Talamond ◽  
G. Gallon ◽  
J. P. Guyot ◽  
I. Mbome Lape ◽  
S. Trèche
Keyword(s):  
Phytic Acid ◽  
Ion Chromatography ◽  
High Performance ◽  
Food Samples

High Performance Ion Chromatography Determination of Total Sulfites in Foodstuffs

1994 ◽  
Vol 17 (2) ◽  
pp. 447-456 ◽  
Author(s):  
E. Ruiz ◽  
M. I. Santillana ◽  
M. De Alba ◽  
M. T. Neeto ◽  
S. Garcia-Castellano
Keyword(s):  
Ion Chromatography ◽  
High Performance

Application of ion chromatography for the determination of biogenic amines in food samples

2015 ◽  
Vol 70 (9) ◽  
pp. 1131-1138 ◽  
Author(s):  
Aneta Jastrzȩbska ◽  
Anna Piasta ◽  
Edward Szłyk
Keyword(s):  
Biogenic Amines ◽  
Ion Chromatography ◽  
Food Samples

scholarly journals Comprehensive two-dimensional ion chromatography (2D-IC) coupled to a post-column photochemical fluorescence detection system for determination of neonicotinoids (imidacloprid and clothianidin) in food samples

RSC Advances ◽  
2018 ◽  
Vol 8 (17) ◽  
pp. 9277-9286 ◽  
Author(s):  
Nadeem Muhammad ◽  
Fenglian Wang ◽  
Qamar Subhani ◽  
Qiming Zhao ◽  
Muhammad Abdul Qadir ◽  
...  
Keyword(s):  
Ion Chromatography ◽  
Fluorescence Detection ◽  
Detection System ◽  
Food Samples ◽  
Two Dimensional ◽  
Chromatographic Separations ◽  
Fluorescence Determination ◽  
Fluorescence Detection System

A 2D-IC system was successfully fabricated for clean isocratic chromatographic separations and sensitive post column UV induced fluorescence determination of two NNIs in six complex food samples.

scholarly journals Determination of the Phenolic Profile and Antioxidant Activity of Leaves and Fruits of SpanishQuercus coccifera

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
L. Molina-García ◽  
R. Martínez-Expósito ◽  
M. L. Fernández-de Córdova ◽  
E. J. Llorent-Martínez
Keyword(s):  
Antioxidant Activity ◽  
High Performance ◽  
Ion Trap ◽  
Food Samples ◽  
Total Phenolic ◽  
Phenolic Profile ◽  
Ion Trap Mass Spectrometer ◽  
High Antioxidant Activity ◽  
Cardioprotective Effects

In this work, we report the phytochemical composition and antioxidant activity of methanol extracts of leaves and fruits (acorns) ofQuercus coccifera(kermes oak). Forty-one compounds were characterized using high-performance liquid chromatography with electrospray multistage mass spectrometry (HPLC-ESI-MSn) with an ion trap mass spectrometer. A high percentage of the detected compounds were gallic acid derivatives, although some saccharides and flavonoids were also present. This phytochemical pattern is typical inQuercusspecies, which are rich in gallotannins. These compounds are partially responsible for the cardioprotective effects observed in different food samples containing them. We evaluated the antioxidant activity by ABTS and DPPH assays. In both cases, high antioxidant activity was observed, being higher in acorns than in leaves. The high antioxidant potential of the extracts, which is related to the high total phenolic content, indicates the potential benefit of the use of this species as a source of bioactive compounds.

scholarly journals New Analytical Approach for the Determination of Calcium Phosphate Dibasic and Tribasic in Processed Food by Comparison of Ion Chromatography with High-Performance Liquid Chromatography

Foods ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 248 ◽  
Author(s):  
Minjung Song ◽  
Juhee Park ◽  
Jihyun Lee ◽  
Heejae Suh ◽  
Hyunjung Lee ◽  
...  
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Calcium Phosphate ◽  
Ion Chromatography ◽  
High Performance ◽  
Food Additives ◽  
Food Samples ◽  
Hplc Method ◽  
Processed Foods ◽  
Phosphate Ions

An analytical method to measure solubilized orthophosphate ions (HPO42− and PO43− ) from the water-insoluble food additives calcium phosphate dibasic (DCP) and calcium phosphate tribasic (TCP) in processed foods was optimized by comparing ion chromatography (IC) coupled with DS6 conductivity detector (Cond.) and high-performance liquid chromatography (HPLC) with Evaporative light scattering detector (ELSD) methods. The ion-pairing HPLC method could analyze calcium and phosphate ions successively. However, this method exhibited low reproducibility after approximately 48 hours of measurements. The IC method was established as an effective method of measuring orthophosphate ions with high reproducibility using distilled water and KOH solution as the mobile phase with a Dionex column. Matrix-based limit of detections (LOD) and limit of quantifications (LOQ) for snacks and cereals were estimated in the range of 0.01–0.91 µg/mL and 0.21–2.74 µg/mL, respectively. In inter-day and intra-day tests, the calculated precision (%RSD) and accuracy (recovery %) ranged from 0.5% to 6.6% and 82% to 117%, respectively, in both food samples. The levels of DCP or TCP could be analyzed in various positive food samples, and the developed IC method demonstrated good applicability in the analysis of DCP and TCP in collected processed foods.

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