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2015年5月29日 星期五

【環保技術】土壤採樣:FPXRF之使用經驗

FPXRF中文名稱為攜帶式X射線螢光偵測器。因為FPXRF之測值在一般情況下,與法規標準方法之檢測值還是有差距,所以多用在現篩測土壤樣品,評估土壤受污染程度及挑撰進樣分析之樣品。

依照使用的經驗來說,造成FPXRF測值與法規標準方法檢測值差異之主要因素有:
1.樣品均質度。
2.樣品化學基質差異。
3.儀器偵測極限。

依相關文獻記載,以FPXRF偵測鉻及銅時,易受干擾,故其測值與法規標準方法之檢測值比較,可能有較大的差異。