Quantitative electron and gas cloud experiments
نویسندگان
چکیده
منابع مشابه
Quantitative PCB standards for electron capture gas chromatography.
電子捕獲型検出器(ECD)に よるPCBの 定量分析 は ECDがPCBの 異 性体 に対 して異な る感度 で 応答 す る ので,サ ンプル中のPCBを 塩 素化 し,す べ てを10-塩 化 ビフェニルに変 換 して得 るECD信 号 と,既 知 量 の PCB標 準物質を塩素化 して得 るECD信 号 とを比較 し てな され てい る.こ の定量法 は総PCB量 を迅速,か つ 高感度に測定 できるが,前 処理 が面倒であ り,ま たサ ン プル に代 謝ま たは分解が起 っていて も,組 成を無視 して いるので,わ か らない.そ こで各 ピー クの量的な組 成の わか ってい るPCB標 準物 質を使 った定量 分析 はこの欠 点を克服 する. 図-1にAroclor1242(モ ンサ ン ト社)のECDに よ る ク ロマ トグ ラ ムを,表1に そ の組 成 を示...
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ژورنال
عنوان ژورنال: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
سال: 2007
ISSN: 0168-9002
DOI: 10.1016/j.nima.2007.02.011