比色試劑 的英文怎麼說
中文拼音 [bǐshǎishìjì]
比色試劑
英文
colorimetric reagent-
Stability testing and compare of the hydroextracting the dark brown pigment from walnut epicarp of dry in the sun and by the airing and retting
摘要將同一采樣點的樣品分別曬乾、晾乾、漚干后，以水為萃取劑，提取棕褐色色素，並對其穩定性進行了測試與比較。Under the appropriate conditions of sampling equipment of gas chromatographic headspace analysis, determine a suitable salt and a suitable extracting solvent by the orthogonal design method, then determine the fitting feed composition of ethanol - water mixture, the fitting distribution between extracting solvent and mixture, and the fitting salt concentration by the uniform design method
在對建立的頂空氣相色譜采樣裝置的操作條件進行優化之後，先用正交試驗設計法確定非連續性因素鹽和萃取劑及其在備選水平中的適宜水平，再用均勻試驗設計確定連續性因素乙醇的進料濃度、萃取劑配比和加鹽量及其備選水平中適宜的水平范圍。With the purpose of better understanding some weak links in this subject, we comprehensively and systematically compared the effects of some typical inhibitors and their different combined ways in inhibiting cd bioavailability in purple soil, further studied the laws and affecting factors of cd ' s transfer and transformation in soil - plant system, revealed the mechanisms inhibitors function, and explored the practicable inhibitor prescriptions and their usage. the results are expected to provide reliable techniques for controlling cd pollution of agricultural soils in chongqing and it is also significant to ameliorate soils polluted by other kinds of heavy metals. comprehensive methods including pot experiment, laboratory culture experiment, kinetic and thermodynamic adsorption - desorption experiment were adopted in this study, and the acidified purple soil was chosen to test, considering that cd is highly active in this soil
本研究針對重慶市農業土壤的污染狀況，選取鎘活性較高的酸化紫色土為供試土壤，採用盆栽試驗、培養試驗、化學熱力學與動力學吸附試驗相結合的方法，系統研究和比較多種調控劑及其不同組合方式對鎘生物活性的效應，並揭示鎘在土壤?植物系統中的遷移轉化規律及影響因素，進一步分析調控劑的作用機理，探尋具有實際應用價值的調控劑配方及合理使用的方法，這不僅可以為重慶市農業土壤鎘污染的防治提供可靠的技術保障，而且對于其它重金屬污染的治理也有一定的理論意義。General methods of test for pigments and extenders - comparison of resistance to light of coloured pigments of similar types
顏料和填充劑的一般試驗方法.同類著色顏料耐光性的比較General methods of test for pigments and extenders. part 15 : comparison of resistance to light of coloured pigments of similar types
顏料和填充劑通用試驗方法.第15部分:同類著色顏料耐光性比較The best condition for extracting polysaccharide from porphyridium cruentum were as follow : alcohol concentration was 50 %, alcohol volume was 1 - fold time, percolation time was 0. 5h, the volume ratio of glycoprotein solution to sevag reagent was 2 : 1, time was 45min and sevag reagent was 4 : 1 between chloroform and butanol. the result also indicate that sodium acetate anhydrous and nh4cl were the best carbonic and nitrogen source for polysa
血色紫球藻的最優提取工藝為乙醇濃度50 % ，乙醇用量為1倍體積，醇沉時間為0 . 5小時;氯仿與正丁醇的比例4 : 1 ，樣液與sevag試劑的比例2 : 1 ，作用時間為45min ;五種碳源的影響差異不顯著，氮源的影響差異顯著，其中添加無水乙酸鈉和nh4ci的培養基多糖產率最高，分別為33 . 784mg / l和40 . 997mg / l 。The polysaccharide production were 37. 296mg / l and 12. 961mg / l. the best conditions for extracting polysaccharide from porphyridium purpureum were as follow : alcohol concentration was 75 %, alcohol volume was 2 - fold time, percolation time was 1h, the volume ratio of glycoprotein solution to sevag reagent was 1 : 2, time was 45min and sevag reagent was 3 : 1 between chloroform and butanol. the result also indicate that nahco3 and nh4cl were the best carbonic and nitrogen sources for polysaccharide respectively
淡色紫球藻的最優提取工藝為乙醇濃度75 ，乙醇用量為2倍體積，醇沉時間為1小時；氯仿與正丁醇的比例3 ： 1 ，樣液與sevag試劑的比例1 ： 2 ，作用時間為45min ：由方差分析可得五種碳源和五種氮源對胞外多糖的影響不顯著，添加碳酸氫鈉和摘要nhoci的多糖產率最高，分別為41Inguiry upon the optimal determination conditions of hydrogen nitride nitrogen in water with napierian reagent colorimetric method
納氏試劑比色法測定水中氨氮適宜條件探討Abstract : this article reports a study on the synthesis and propertiesis of thioethers bi - equivalent magenta couplers. experiments carried on color negative film and color paper showed that these bi - equivalent couplers perform higher photographic activity and higher stability compared with conventional quadra - equivalent magenta couplers and are also different from dir couplers
文摘:本文敘述硫醚類二當量品紅成色劑的合成和性能研究，經彩色膠卷和彩色相紙應用試驗，與四當量成色劑比較，有著更高照相活性與穩定性，並說明了與dir品成色劑的區別。Determination of substances characteristic of green and black tea - content of total polyphenols in tea - colorimetric method using folin - ciocalteu reagent
綠茶和紅茶的物質特性測定.茶中多酚的總含量.使用folin - ciocalteu試劑的比色法Water quality - determination of ammonium - nessler ' s reagent colorimetric method
納氏試劑比色法Air quality. determination of ammonia. nessler ' s reagent colorimetric method
空氣質量氨的測定納氏試劑比色法Standard test method for comparing colors of films from water - emulsion floor polishes
水乳化地板拋光劑膜的顏色比較標準試驗方法Standard test method for approximate acidity in electrical insulating liquids by color - indicator titration
用比色指示劑滴定法測定電絕緣液近似酸度的標準試驗方法分享友人