英翻中 麻煩盡量翻順點 贈20點

Question

2.2. Analytical methods and instrumentation
The determination of PCDD/PCDFs was done via high
resolution capillary gas chromatography (HRGC) coupled
to high resolution mass spectrometry (HRMS) in combination
with the isotope dilution technique, based on the US
EPA Method 8290. At different stages of the analytical
process C13-labeled 2,3,7,8 chlorine substituted PCDD/
PCDF congeners were added to have control on the analytical
process and to correct potential losses during the different
steps in sample preparation and instrumental analysis.
Appropriate C13-labeled extraction standards were added
to the homogenized sample to control the whole sample
preparation process. Samples were extracted using hexane/
acetone as solvent and the extracts were concentrated.
A multi-step sample clean-up was performed to remove
the matrix and potential interfering components. The first
step was a fat destruction by treating the sample solution
with acid silica. The obtained extract was then subjected to
a multilayer silica clean-up column in order to further
remove the matrix. After this clean-up, the extract was
eluted on a basic alumina column to separate PCBs from
PCDD/PCDFs and from interfering components by applying
different eluent solutions on the column.

Answer 1

對於你的問題~
翻譯如下:

2.2. 分析的方法和器械操作

PCDD/PCDFs的測定為由透過高解析度毛細管氣體色譜分析法(HRGC)，連接高解析度質量光譜儀(HRMS)，與同位素稀釋技術聯合在一起，基於USEPA 方法8290。

在分析的過程的不同的階段，C13標記，2，3，7，8氯以PCDD/PCDF同類物代替被增加，在分析的過程中去控制，用樣品準備和儀器分析在不同的階段期間校正潛在的損失。

適當C13標記，抽出標準貼標籤加個均勻的樣品，去控制整個樣品準備過程。

樣品選出使用己烷/丙酮當為溶劑和提煉濃縮。

一個多步驟樣品的被除去母基體和潛在牴觸成分。

第一步是透過樣品溶解與酸的二氧化矽去將脂肪破壞。
獲得的提煉物為一個題材，是一個多層酸的二氧化矽圓柱為了將來移除母體。

在清潔之後，提煉物在初步的氧化鋁柱子上被洗提，為了去把PCBs與PCDD/PCDFs分開，從干涉成分透過不同的洗滌液。

Answer 2

你的能力只有普通英文的程度,沒有把大寫部分翻出來,不過還是投你一票

Answer 3

2.2. 分析方法和儀器工作PCDD/PCDFs 的決心完成通過高分辨率血絲氣相色譜(HRGC) 被結合對高分辨率許多光譜(HRMS) 與同位素稀釋技術的組合,
根據美國EPA 方法8290 。在不同的階段分析處理C13 被標記2,3,7,8 氯被替代的PCDD/ PCDF congeners 增加有控制在分析過程和改正潛在的損失在不同的步期間在樣品準備和有助分析。適當的C13 被標記的提取標準增加來均勻的樣品控制整體樣品準備過程。樣品被提取了使用己烷丙酮當溶劑和萃取物被集中了。multi-step 樣品清潔執行去除矩陣和潛力干涉的組分。第一步是肥胖破壞由對待樣品解答與酸硅土。被獲得的萃取物然後被服從對一個多層硅土清潔專欄為了進一步去除矩陣。在這清潔以後, 萃取物被洗脫在一個基本的鋁土專欄分離PCBs 從PCDD/PCDFs 和從干涉的組分由應用不同的eluent 解答在專欄。
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