CQ Vial for TOC - 應用資訊

Certified Pre-Cleaned Vials for Total Organic Carbon Analyzers

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在水中測量 TOC 濃度

在水中測量 TOC 濃度

測量方法

TOC concentration measured in water from both containers

將一個徹底清潔過的大玻璃瓶裝滿超純水。再將水從瓶子分配到樣品瓶內，並同時在瓶子和樣品瓶內測量 TOC 濃度。
使用瓶中水測量結果做為空白資料，可透過從樣品瓶測量結果減掉空白測量結果，決定從樣品瓶浸出的數量。
總計以該方法評估浸出六次，包括三次使用實驗室設備清潔機清潔樣品瓶 (重複使用的樣品瓶)，以及三次使用 CQ 預先清潔的樣品瓶。

Measurement Result

Type	Iterations	Blank [B μg/L]	Vial [V μg/L]	Leached [V-B μg/L]
Reused vials	1	25.23	134.2	108.97
	2	27.25	94.43	67.18
	3	26.69	133.0	106.31
CQ vial	1	28.68	35.29	6.61
	2	27.05	35.38	8.33
	3	25.86	32.23	6.37

註：資料來自單一範例。結果可能隨使用條件而異。

CQ 樣品瓶抑制浸出的效果，顯著優於在清潔機內清潔的樣品瓶。
因此不僅測量純水的客戶應考慮使用 CQ 樣品瓶，想避免樣品瓶清潔、乾燥和存放期間污染的客戶，以及希望節省清潔、乾燥和存放樣品瓶所需時間和空間的客戶，都應考慮使用。