retention time 中文意思是什麼
retention time
解釋
保持時間-
Calculatie retention time of plastic melt in extrusion moulding head
塑料熔體在擠出模頭中停留時間的計算 -
281 double crossover mutants were examined by fermentation experiments and hplc analysis for production of polyketides. besides avermectin b1a and b2a, a new compound ( about l ~ 4ug / ml ) which showed a retention time and fragmentation patterns identical to those of the authentic sample of 22, 23 - dihydroavermectin bla by hplc and lc / ms analysis were detected in culture extracts of 27 isolates
在篩選的281個雙交換突變株中，有27株除了產生阿維菌素b1a和b2a ，還產生一個新組分，經hplc和lc ms分析，證實該組分為c - 22 ， 23雙氫阿維菌素b1a （即伊維菌素b1a ） 。 -
After reference solution has been formulated and sensitivity has been adjusted and tested according to above mentioned method ( 3 ), take appropriate amount of test sample solution and reference solution, blend samples separately ; unless otherwise specified, recording time of the former should be 2 times of retention time of chromatographic peak of main component, measure peak area of each impurity on the chromatograph chart of test sample solution, and compare with peak area of main components of reference solution, then calculate content of each impurity accordingly
同上述（ 3 ）法配製對照溶液並調節檢測靈敏度后，取供試品溶液和對照溶液適且，分別迸樣，前者的記錄時間，除另有規定外，應為主成分色譜峰保留時間的2倍，測量供試品溶液色譜圖上各雜質的峰面積並與對照溶液主成分的峰面積比較，計算雜質含量。 -
Baf has many advantages, such as small volume, little covering earth and hydraulic retention time ( hrt ), high treatment efficiency and effluent water quality, low investment and running cost etc. baf has been used widely for many years in the world and been used to treat several wastewater in our country. in this paper, baf was studied on guanting reservoir water source treatment with pilot scale and homemade expanded clay as filtration media
曝氣生物濾池（ biologicalaeratedfilter ，簡稱baf ，或biologicalfiltrationoxidizationreactor ，簡稱biofor ）工藝具有體積小、容積負荷高、水力負荷大、水力停留時間短、所需基建投資少、處理出水水質好等特點，國外已廣泛應用，國內也在多個行業的水處理中成功應用。 -
Following, we developed an electronic nose adopting advanced technology which combined capillary column to separate vocs according their different retention time and surface acoustic wave sensor coating with polymer film to detect the qualities of those vocs. in my article, lung cancer situation, breath detection principle, feasibility of electronic nose adopting breath detection, and the principles of spme & gc have been particularly introduced. and initially certified the correlation between lung cancer and the marker vocs by detecting lung cancer patients breath, normal human breath, and lung problem patients by solid phase microextraction ( spme ) and gas chromatography ( gc ) system
本課題根據國外關于呼吸氣體中某些有機氣體成分和肺癌相關性的研究工作報告，採用固相微萃取?氣相色譜系統對肺癌病人呼吸氣體、正常人呼吸氣體、和其它類肺病患者呼吸氣體中的有機氣體成分進行對比檢測、研究，以期確定肺癌病人呼吸氣體中特徵有機氣體成分；並且期望建立首創的採用毛細管色譜柱與聲表面波傳感器聯用技術的電子鼻系統，與固相微萃取?氣相色譜系統作為對比檢測，能夠做到粗篩肺癌病人。 -
The retention time of the major peak in the chromatogram of the assay preparation corresponds to that in the chromatogram of the standard preparation, as obtained in the assay
含量測定項下色譜圖主峰的保留時間應與對照品溶液主峰保留時間一致。 -
The article briefly introduces five basic functions of the calculation software of traditional medicine fingerprint similarity of zhejiang university. 1 input the data. 2 deal with data in advance and compare chromatogram fingerprints. 3 retention time to indentify and math the peaks automatically. 4 the calculation of chromatogram fingerprint similarity. 5 output the result and print it. the software used to calculate the similarity of chromatogram fingerprint is easy to learn
摘要系統地介紹浙大中藥指紋圖譜相似度計算軟體五個基本功能： 1數據導入， 2數據預處理和色譜圖的縮放比較， 3保留時間校正和譜峰自動匹配， 4指紋圖譜相似度計算， 5結果輸出和報表列印。 -
Objective : to discuss the selection of retention time and internal standard peak in similarity calculation for traditional chinese medicines ( tcm ) fingerprints
摘要目的：探討影響中藥色譜指紋圖譜相似度計算的保留時間校正和內標峰選擇。 -
Conclusion : in order to get a stable result in similarity calculation for tcm fingerprints, the retention time and internal standard peak must be standardized in treatment procedure
結論：相似度計算中，內標峰選擇和保留時間校正須規范化，才能獲得穩定的計算結果。 -
Results : when similarity was calculated between control and sample chromatography fingerprints, differences were found using different data treatments procedure, for example, correlating retention time and selecting internal standard peak
結果：保留時間校正前後相似度結果差異較大，內標峰選擇與否和選擇不同內標峰的各圖譜與對照圖譜的相似度均有差異。 -
In order to compare the retention time ( rt ) and limits of detection of 20 organophosphorous insecticides in different conditions the experiments were carried out using a medium polar capillary column ( db - 1701 ) and a no polar capillary column ( db - 1 ) with two detectors ( gc - fpd and npd ). the rt of 20 organophosphorous insecticides in two different polar capillary columns was a retention qualitative method for 20 organophosphorous insecticides. db - 1701 capillary column coupled with gc - fpd detector was used in the following study, the limits of detection were in range of 5x10 - 11 ~ 2x 10 - 12 g, the linear range was 2x 10 - 9 ~ 1 x 10 - 11g
本研究用兩種檢測器（氮磷檢測器和火焰光度檢測器儀器）和兩種不同極性色譜梓（中極性毛細管色譜柱db - 1701 、非極性毛細管色譜柱db - 1 ）作為研究手段，比較了20種有機磷殺蟲劑在兩種色譜柱（ db - 1 、 db - 1701 ） 、兩種檢測器（ fpd 、 npd ）上的保留時間及最小檢測量，建立了用不同極性色譜柱上有機磷農藥的保留時間可作為有機磷農藥雙柱定性確證的的方法；建立了db - 1701 ， gc - fpd測定蔬菜中20種有機磷殺蟲劑的氣相色譜法，該方法的最小檢測量為5 10 ~ （ - 11 ） 2 10 ~ （ - 12 ） g ，線性范圍在2 10 ~ （ - 9 ） 1 10 ~ （ - 11 ） g時，相關性良好。 -
Srt solids retention time
粒子留著時間 -
One - step synthesization made the electrical properties more stable, controling the reducing sintering temperature and retention time can adjust the electrical properties in a certain scope, changing the oxidation temperature made the varistor ’ s voltage v10ma changed, using the special double - layer silver plasm can eliminate the voltage - direction problem
一次配料得到的樣品電性能一致性更好;控制還原氣氛燒結溫度和保溫時間，可以在一定范圍內調節鈦酸鍶壓敏電阻器的電性能，改變氧化溫度可以獲得不同的壓敏電壓，從而得到系列化產品;採用雙層銀漿工藝成功消除了壓敏電壓的方向性問題。 -
Absolute retention time
絕對保留時間 -
Apparent retention time
表觀保留時間 -
The bottom of the reservoir shall be designed to provide adequate retention time of the heat transfer fluid to ensure positive heat transfer
流體貯存器必須為熱傳導流體提供適當的停留時間，以保證能夠進行充分的熱交換。 -
One cause of retention time uncertainty identified is poor oven temperature repeatability
一個引起保留時間不確定度大的因素是差的柱溫箱溫度重復性。 -
Such impurities requiring calibration calculation normally use main component as reference and use relative retention time for orientation, such value are to be recorded under each type
這些需作校正計算的雜質，通常以主成分為參照採用相對保留時間定位，其數值一併載人各品種項下。 -
Hrt hydraulic retention time
水力停留時間 -
This paper reviews the design method of membrane bioreactor, including determining hydraulic retention time and sludge retention time, choosing sludge concentration and analyzing the process economy
摘要綜合論述了膜生物反應器的設計方法，包括確定最佳水力停留時間、污泥停留時間、污泥濃度，經濟性分析。
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