TY - JOUR
AU - Siegmund, Dirk
AB -  A sliding spark spectrometer with a new powerful excitation source was used to detect halogens, flame retardants and metals in non-chlorine containing polymers. The sliding spark source generated discharges using up to 2 kJ of stored energy. The new generator results in improved signal-to-background ratios (SBR) by the factor of three. With this source and a newly developed low cost charge-coupled device spectrometer it was possible to detect elements simultaneously in polymer materials within 5 s. Fillers and white pigments containing Pb, Ti, Zn, Si, Mg, Ca and Ba were qualitatively detected in polyethylene and polypropylene. Acrylnitrile-butadiene-styrene copolymer samples containing different types of flame retardants were analysed and Cl, Br, P, Sb, Al, Mg and Zn were detected. Limits of detection of about 0.1% w/w for elements in chlorine-free polymers were obtained. The use of multiple linear regression gave better results than the use of one individual spectral line.
TI - Sliding spark spectroscopy – rapid survey analysis  of flame retardants and other additives in polymers
JF - Analytical and Bioanalytical Chemistry
DO - 10.1007/s002160050513
DA - 1997-07-30
UR - https://www.deepdyve.com/lp/springer-journals/sliding-spark-spectroscopy-rapid-survey-analysis-of-flame-retardants-ZsBvqTjZ0Z
SP - 804
EP - 811
VL - 358
IS - 8
DP - DeepDyve
ER -