Trace element analysis of korean car windshield using LA-ICP-MS

서지정보

· 발행기관 : 한국분석과학회
· 수록지 정보 : 분석과학 / 22권 / 3호 / 235 ~ 246페이지
· 저자명 : 민지숙, 최만식, 허상철, 김재균

초록

The analyses of minor and trace elements in glass debris were performed using LA-ICP-MS in order
to identify manufacturers using real commercial samples. At first, a calibration curve was made using standard glass
samples of NIST 610, 612, 614 and 616. 29Si was used as an internal standard, and the ratios of metal/Si for each
metal were compared with their concentrations. Based on elements in each sample and standard materials, 24 metals
were quantified and the LOD in analysis, according to the blank sample, was in the range of 0.11 mg/kg (Ti)-
4.91 mg/kg (Ca). Eleven samples from two manufacturers were collected and five sub-samples were taken from
each sample for analysis. 15 elements (Co, Ce, Ca, Mn, Sr, Ba, Li, Rb, U, La, Th, Na, Al, Zr and Hf) were selected
to identify manufacturers because some elements (Cu, Cr, Cd and Ni) were below the detection limit and some
elements (Ti, Pr, Mg, Nb, Nd) were absent in the analysis of standards and others (Pb and Sn) had a problem
of homogeneity. The attempts to identify manufacturers and the manufacturing period were performed through a
triangular diagram. In the manufacturer discrimination by discriminant analysis, a canonical discriminant function
was made based on Mn, Ce and Rb, and each sample could be identified.

참고자료

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