GC Analyzers (Gas Chromatography), VOC Analyzer (YL6500 GC) - YOUNG IN Chromass  Korea

VOC Analyzer (YL6500 GC)

VOC analyzer is optimized to analyze VOCs in aqueous samples and it accurately analyze trace level of VOCs

(ppt level by P&T or SPME Arrow) by YL6500 GC coupled with mass spectrometer (GC/MS).

Volatile organic compounds, organic chemicals and also known as VOCs, which have a low boiling point,

can be present everywhere in our lives such as in the surrounding air and in the environmental water and

land. There are about 300 VOCs known and 70 VOCs are easily dissolved in aqueous sample like drinking

water and they can have a bad long-term influence on human health. Hence there are many methods applied

to analyzing of VOCs according to the regulations.

VOC analyzer is optimized to analyze VOCs in aqueous samples and it accurately analyze trace level of VOCs (ppt level by P&T or SPME Arrow) by YL6500 GC coupled with mass spectrometer (GC/MS).

Features

· Various sample introduction methods available (Static Headspace, Headspace SPME, Purge & Trap Concentrator) depending on the sample concentration, customers’ budget or preference.
· Accurate sample preparation method support
· Analysis method setup which is powerful & easy to use CDS (Chromatography Data System)
· Customized application support with recommended columns and consumables
· Superior cost effectiveness with optimized analysis efficiency
· Low maintenance cost and long term stability

 Specification : 

VOCs Analyzer

YL VOCs Analyzer accurately tests for the presence of volatile organic compounds (VOCs) which may be dissolved in 

drinking and waste water supplies. The Analyzer operates by first purging VOCs from a water sample under pressure 

using inert gasses such as helium or nitrogen. The VOCs are trapped on a solid carbon-based sorbant in a trap tube 

and are concentrated by thermal de-sorption, and then separated by passing the VOCs through a column in a column 

oven. The separated volatile constituents are qualitative and/or quantitative detected with either the flame ionization 

detector (FID) or electron capture detector (ECD).

Of the about 300 VOCs known, 70 are easily dissolved in water; of these 70 VOCs, 18 are regulated by the Korean 

Ministry of the Environment for meeting drinking water quality standards (KDWR and the EPA 500 series method).

YL VOCs Analyzer accurately tests for the presence of VOCs and measures their concentration. The system contains 

all necessary reagents and equipment for conducting the analyses, including detailed procedures and protocols for 

conducting the tests. These protocols are in full compliance with approved U.S. EPA methods.

• Useful Information

1) Sample Collection

Compounds Container Additives Storage

    Volatile Organic 

                Compounds     Glass/Brown bottle      Ascorbic acid or

    Sodium Thiosulfate   4 °C

VOCs are collected as a sample in a 40 ml vial. Collection must be done carefully so as to avoid any empty space 

or air bubble in the sample vial, which would interfere with the accuracy of downstream measurements of VOCs in 

the sample. The collected sample may be stored at 4 °C for up to 14 days, but it is recommended analyses of the 

collected sample be conducted as soon as possible but no later than 14 days of sampling. 

2) Sample preparation after collecting the sample

Add ascorbic acid to the collected sample in the 40 ml vial. Ascorbic acid prevents the oxidation of any VOCs present 

in the sample. Such oxidation would be THM in the presence of Humic acid, Fluvic acid and Choloride. Adjust the 

pH of the sample to pH 2.0 or less with 6N HCl. Store the sample in a dark location until ready to proceed with the 

analysis.

If using the Purge & Trap method, inject the thermal-desorbed compound to the Oven system module. Proceed with 

the detection and measurement of VOCs that may be present in the sample. 

3) Preparation of Calibration Standards

Use the standards included in the kit. In order to make a VOC blank solution and standards, it is suggested that ultra

pure water (YL aquaMAX Ultra System) be used. Prepare the water by first the heated water passing with 99.995 % of 

Nigrogen gas for one hour, and then the water is allowed to cool passing with Nitrogen gas, which is a VOC blank 

solution. Using the prepared blank solution, dilute the highly concentrated standards based on the calibration of 

concentration standards to make a standard.