Methods Anhydrous acetic acid as solvent, 0.1 mol/L perchloric acid as titrant, crystal violet solution as indicator to establish non-aqueous titrations and ODS column as stationary phase, methanol and a mixture of 0.025 mol/L sodium phosphate monobasic and 0.02 mol/L sodium dedecyl sulfate (80:20) adjusted with phosphoric acid to a pH (4.8±0.1J as mobile phase, 220 nm as detective wavelength to establish HPLC-UV method for determination of piperazinylethylestrone drug substance; FMOC-CL as a derivatization reagent, FD as a detector to establish an HPLC method with derivatization and column switching for determination of piperazinylethylestrone in dog plasma.

分別采用無水冰醋酸為溶劑男女八x八x视频网站，0.1mol/L高氯酸為滴定液摸一摸AV，結(jié)晶紫指示液指示終點的非水滴定法和HPLC-UV法測定哌嗪雌酚酮原料藥含量久久久久久a亚洲欧洲AⅤ；以FMOC-CL為衍生化試劑免费三级日欧美色性片，采用柱切換柱前衍生化螢光檢測的HPLC法測定狗血漿中哌嗪雌酚酮含量农村女人一级毛片农村妇女。

After the equivalence point, there is excess titrant present.

等當點之后性爱小说在线观看，有多余的滴定液出現(xiàn)。

When the titrant is reduced, it turns colourless.

當?shù)味ㄒ罕贿€原時黄色禁看视频，它就變成無色午夜a片视频播放器。

Continue until a final addition of Dithizone Titrant is green in color after shaking.

繼續(xù)91无码视，直到雙硫腙滴定試藥的最后的加法是綠色的在顏色在以后shaking。

NOTE-The volume of titrant used in the blank determination must not exceed 0.1 mL.

鈔量滴定劑用在空白的決心絕不能超過0.1毫升av资源观看。

Using PAN as indicator and CuSO4 as indirect titrant the aluminium content is determined.

用氫氧化鈉溶液溶解樣品的同時將鐵與鋁分離最新在线精品国自产拍三级片，加入過量的EDTA與鋁絡(luò)合，以PAN為指示劑久久综合色88888，用硫酸銅標準溶液間接滴定法測定鋁久久国产精品一区。

A reagent, called the titrant or titrator[1], of known concentration and volume is used to react with a solution of the analyte or titrand[2], whose concentration is not known.

一種叫作滴定液的濃度和體積已知的試劑與未知濃度的被測物或被滴定物反應(yīng)。

The titration curve for an acid-base titration is a plot of the solution pH, normally on the vertical axis, against the volume of titrant added

酸堿滴定的滴定曲線是一張溶液的pH值和滴定液用量之間的關(guān)系圖干荡妇免费视频一区二区。

The adding mode of titrant and the determination of endpoint were studied by T50 potentiometric titrator. The effect of nonaqueous electrode and carbon dioxide on the experimental results was analyzed, and the optimal testing conditions were determined.

采用T50電位滴定儀對滴定劑的添加方式和終點的確定方式進行了研究中文字幕在线看一区二区，分析了非水測量電極和二氧化碳對測定結(jié)果的影響，確定了噴氣燃料總酸值的最佳測定條件日韩精品导航视频在线播放网站。

For example, an oxidation-reduction titration using potassium permanganate (pink/purple) as the titrant does not require an indicator.

例如欧美性爱久j草影院，一種以高錳酸鉀為滴定液的氧化－還原滴定就不需要指示劑。