
With the newly developed technique "sliding spark spectrometry", an interesting tool for fast plastic identification now exists. It allows direct analysis of handy, compact, non-conductive plastic parts from the application field of household, engineering electronics and automotive waste plastics and other materials. For sample preparation to remove dust and dirt or paintings the sample surface can be easily cleaned by scratching with a knife.
The basic principle of the method is the thermal vaporization of a small amount of the plastic surface using a train of defined high-current sliding sparks. The material components in the spark plasma are vaporized, atomized and activated to emit radiation.
spark generator and a computer, which controls and evaluates the identification process. Parameter input, spectra view, can be set by using an integrated LCD-touchscreen.
Halogen detection is performed by the characteristic emission of Chlorine and Bromine in the optical spectra. The intensities of these spectral lines are compared with preset threshold values. These element are detected if the pre-set threshold value for PVC, Chlorine and Bromine are exceeded. After calibration with known halogen containing samples, the system enables semi-quantitative in the sub-% concentration range.
Identification of PVC is the result if high intensity of Chlorine is measured.
The portable sliding spark spectrometer allows the following samples to be analyzed within 1 second and independently of colour:
IoSys - Dr. Timur Seidel e. K.
Steinhauser Str. 14
D- 40882 Ratingen
Tel.: +49-(0)2102-895001
Fax: +49-(0)2102-895002
Email contact here: office@iosys-seidel.de