lower detection limit 中文意思是什麼

lower detection limit 解釋
探測下限
  • lower : adj 〈low 的比較級〉1 較低的。2 下級的，低級的。 lower animals 下等動物。3 南部的。 in lower Manh...
  • detection : n. 1. 探知；發現，發覺；敗露。2. 【化學】檢定，檢查；【電訊】檢波。
  • limit : n. 1. 界限，界線；邊界。2. 極限，限度；限制。3. 〈pl. 〉范圍，范域。4. 限價；限額；賭注限額；獵物限額。vt. 1. 限制，限定。2. 減少。adj. -able
  1. Back extraction by hno3 - hf and back extraction by concentrated hnch after lower the concentration of organic phase are studied, the method of back extration by hnorhf can not be used to icp - ms, because some zirconium is hydrolysis when hf is removed by heat. however, the method of back extraction by concentrated nitric acid after lower the concentration of organic phase can be used to icp - ms, the recovery is 93. 2 %, rsd % is 5. 24 %, the decontamination factor of uranium is 3. 2xl04, the detection limit of zirconium is 0. 04ng / ml. the method of tta extracting trace zirconium in uranium is firstly used to icp - ms, the result is satisfied, it can be used to determine zirconium in uranic production quickly and veraciously

    本文通過研究hno _ 3 - hf反萃和稀釋有機相後用濃hno _ 3反萃這兩種分離方法，認為hno _ 3 - hf反萃由於在加熱去除hf時酸度不易控制，導致鋯的部分水解，因而此方法不宜用於icp - ms中，然而稀釋有機相後用濃hno _ 3反萃法用於icp - ms測量中，全程回收率為93 . 2 ，相對標準偏差為5 . 24 ，鈾的一次去污因子為3 . 2 10 ~ 4 ，鋯的測定下限為0 . 04ng / ml ，本文首次將tta萃取分離鈾中鋯用於icp - ms測量中，結果令人滿意，此方法適用於快速、準確測量鈾產品中微量鋯。
  2. Electrical apparatus for the detection and measurement of flammable gases - performance requirements for group ii apparatus indicating a volume fraction up to 100 % lower explosive limit

    可燃性氣體的檢測和測量用電氣裝置.指示低爆炸極限達到體積分率為100 %時ii組裝置的性能要求
  3. The detection of moving nuclear material is more difficult than that of static one ( namely, the minimum detectable limit of moving nuclear material is lower than that of static one )

    從定性的角度易知，由於核材料移動時比靜止時的探測下限低而更難以探測。
  4. The recovery can reach 95 % after it extracts once, rsd % is lower than 10 %, the detection limit of zirconium is 1. 3u. g / ml. and increasing the application of film in xrf is studied. the method of using organic sample to make resource after extracted by tta can be used to determine zirconium in simulated p rocess solution of spent fuel reprocessing quickly and veraciouly

    萃取一次便可達到理想的萃取效果，回收率可達95 ，相對標準偏差10 ，鋯的檢出限為1 . 30 g / ml ，同時改進了薄膜法在x射線熒光光譜法中的應用范圍，此方法採用tta萃取分離的有機相直接制源可快速、準確地對測定purex模擬工藝料液中的鋯含量。
  5. Immuno - pcr for il - 6 was established by use of 1ng / l of the biotinylated dna as template. this immuno - pcr has a detection limit of 1fg / ml of pil - 6 that is 105 times lower than that of indirect elisa, and is the most sensitive method to detect il - 6 up to date

    通過與elisa法比較，發現新建立的免疫pcr法靈敏度為1fg ml豬il - 6 ，是elisa法的10 ~ 5倍，是目前已報道的檢測豬il - 6最靈敏的方法。
  6. In order to cope with the complexity and the multiplicity of environmental samples, a reasonable combination of the fluorescence analysis with each kind of separation technology, through which nitrite is determined in a more accurate, more sensitivity and lower detection limit, is another research direction in the future

    為了適應環境樣品的多樣性和復雜性，實現熒光分析與各種分離技術的合理組合，以更準確、更靈敏和更低檢出限測定樣品中亞硝酸根也是今後的研究方向。
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