scholarly journals Determination of volatile fatty acids in tofu wastewater by capillary gas chromatography with flame ionization detection: A Comparison of extraction methods

2020 ◽  
Vol 483 ◽  
pp. 012038
Author(s):  
R T Rosmalina ◽  
Widyarani ◽  
U Hamidah ◽  
N Sintawardani
Keyword(s):  
Fatty Acids ◽  
Gas Chromatography ◽  
Capillary Gas Chromatography ◽  
Volatile Fatty Acids ◽  
Extraction Methods ◽  
Flame Ionization Detection ◽  
Ionization Detection ◽  
Flame Ionization

Determination of selected fatty acids in dried sweat spot using gas chromatography with flame ionization detection

2016 ◽  
Vol 39 (22) ◽  
pp. 4377-4383 ◽  
Author(s):  
Roman Kanďár ◽  
Petra Drábková ◽  
Lenka Andrlová ◽  
Adam Kostelník ◽  
Alexander Čegan
Keyword(s):  
Fatty Acids ◽  
Gas Chromatography ◽  
Flame Ionization Detection ◽  
Ionization Detection ◽  
Flame Ionization

Development of headspace–gas chromatography–flame ionization detection procedure to determine volatile fatty acids in zoo organic waste leachates

2011 ◽  
Vol 63 (12) ◽  
pp. 2873-2877 ◽  
Author(s):  
Anna Banel ◽  
Marta Wasielewska ◽  
Monika Felchner-Żwirełło ◽  
Bogdan Zygmunt
Keyword(s):  
Fatty Acids ◽  
Gas Chromatography ◽  
Organic Waste ◽  
Volatile Fatty Acids ◽  
Sample Introduction ◽  
Flame Ionization Detection ◽  
Monocarboxylic Acids ◽  
Ionization Detection ◽  
Flame Ionization ◽  
Headspace Gas

In order to determine volatile fatty acids (short chain monocarboxylic acids with 2 to 6 carbon atoms in a molecule) in leachates formed in organic waste piles a procedure based on static headspace (HS) coupled with gas chromatography (GC) have been proposed and optimized. The conditions of HS extraction and sample introduction into a gas chromatograph as well as of chromatographic separation were considered. Using flame ionization detection LODs were of the order of 0.02– 0.37 mg/L. The analyzed leachate collecting on and close to a zoo organic waste pile contained VFAs (Volatile Fatty Acids) at a concentration ranging from 5.5 mg/L to 0.88 g/L and from below LOD to 10.1 mg/L for pool water at some distance from the pile, respectively.

scholarly journals Determination of Fruit Juice Authenticity by Capillary Gas Chromatography with Flame Ionization Detection

1996 ◽  
Vol 79 (3) ◽  
pp. 724-737 ◽  
Author(s):  
Nicholas H Low
Keyword(s):  
Gas Chromatography ◽  
Orange Juice ◽  
Capillary Gas Chromatography ◽  
Apple Juice ◽  
Flame Ionization Detection ◽  
Ionization Detection ◽  
Flame Ionization ◽  
High Fructose ◽  
High Fructose Syrup

Abstract A method using capillary gas chromatography with flame ionization detection was developed to determine the addition of high�fructose syrup and beet or cane invert syrup to apple or orange juice. Fingerprint oligosaccharides in these inexpensive sweeteners were not detectable (area < 1000) in pure apple or orange juice. One hundred twenty- three pure apple juice and 60 pure orange juice samples representing growing regions around the world were analyzed. Ten samples were intentionally adulterated with each sweetener at levels of 5, 10, and 15%. The detection limit for each sweetener was 5%.

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