Tawrat Technology Website: https://tawrattechnology.com

Features

Brand	YOUNG IN Chromass
Origin	Korea
Category	Food Engineering, Chromatography, Lab Equipment
Price	Call for Price

Short Description

Model: VOC Analyzer (YL6500 GC)

• 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

Specifications

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: Volatile Organic Compounds
Container: Glass/Brown bottle 
Additives: Ascorbic acid or Sodium Thiosulfate 
Storage: 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 ultrapure 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.

Description

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).