Monitoring VOC’s in water at low level
The determination of the VOC (Volatile Organic Compounds) in water is an important task for many governmental and industrial laboratories. Currently, most methods use extraction followed by a GC analysis.
These methods are not only time consuming, but require trained personnel for the handling of the GC (gas chromatograph) and the interpretation of the data.
For routine purpose, it is sufficient to verify the presence or the absence of volatile compounds or even to determine an acceptable limit value. Only when this limit has been exceeded is there a need for more information.
- TV 9000 AQUA
A fast method for monitoring volatile organic compounds in water has been developed. In this method, the volatiles are extracted using solid phase micro extraction (SPME) fiber and desorbed into a Flame Ionization Detector (FID) without separation.
The signal obtained is a single peak proportional to the overall quantity of volatile organic compounds (VOC’s) present in water. For monitoring purposes, an identification of the VOC’s is not necessary.
The TV9000 software was developed using the latest programming technology available. A simple Graphic User Interfaces (GUI) makes analysis possible without any analytical knowledge. The software gives users instructions for the next step. The results can be seen immediately on the screen without having to interact with the calculation process. Easy to use without compromising functionality, very simple to understand the software has been designed to accommodate nonspecialized personnel. The TV9000 AQUA method can be easily created by the system manager. Calibration is easily implemented and controlled throughout the process. Threshold (lower, upper or range) can be defined .and calibration control can be set to give to the operator directives. In
case of alarm an e-mail is sent and the status screen on the computer shows an error message.