求助英语高手翻译!!!

发布网友发布时间：2022-04-24 09:49

共4个回答

热心网友时间：2022-06-18 16:49

4.1 sampling
According to GB/T 1605 solid technical methods, and with random access method is used to determine the sampling package; Final sampling is generally not less than 100 g.
4.2 identification test
When using the method of provisions of effective ingredients of identification when in doubt, with at least infrared spectrometry (IR) were identified, sample and the prototype infrared spectra of the no obvious difference.
4.3 3) tin content is determined
This method abstract
Sample with chloroform dissolved diphenyl ether as internal standard, content with using C18 reversed-phase liquid chromatographic column to methanol, phosphate solution as mobile phase, using internal standard method of the sample was on three of the tin high performance liquid chromatographic separation and determination.

4.3.5 determination steps
A) the preparation of the internal standard solution
Say take 1 g (accurate to 0.1 mg) diphenyl ether in 1000 mL RongLiangPing, and then using methanol dilution to scale.
B) the preparation of the prototype solution
Say to take three 0.1 g prototype was tin (accurate to 0.1 mg) in 25 mL RongLiangPing, and add 2 mL chloroform and 10-15 mL methanol, ultrasonic oscillations make its dissolution, and methanol to dilute scale, shaken, remove the accurate solution 1.0 mL, internal standard solution 1.0 mL in 25 mL RongLiangPing, diluted with methanol to scale, shake well.
C) the preparation of the sample solution.
Say to take three technical sample was about 0.1 g tin (accurate to 0.1 mg) in 25 mL RongLiangPing, plus 2 mL chloroform and 10-15 mL methanol, ultrasonic oscillations 5 min in 60-70 ℃ water dissolved, the place to room temperature. And methanol to dilute scale, shake well. Remove the accurate solution 1 mL, internal standard solution 1 mL in 25 mL.
4.5.2 determination steps
Accurate say take 1.0 g sample (accurate to 0.0002 g) in 50 ml beaker with pipette, remove the 10 ml chloroform in the beaker reagent of dissolved, then, will the beaker on ultrasonic cleaning is 5 min, oscillation frequency oscillation after the sample solution in the beaker all turn to 250 ml pear-shaped points in liquid, with pipette funnel to remove the 10 ml chloroform points three times in a beaker of specimens, washing after washing the solution will be all turn to 250 ml pear-shaped points, then take it in liquid funnel 50 ml methanol + water = 1 + 9 solution at the points of liquid funnel oscillation 5 min, sample by extraction should rest for 30 min after, and released organic layer, will extract into 250 ml bottle, garnish with conical 50 ml methanol + water = 1 + 9 solution in three washing points, after washing liquid funnel solution of collection on all 250 ml prism, add in the bottle 6, 8 drop 1 g/L bromine cresol green + 2 g/L methyl red = 3 + 1 to mix

热心网友时间：2022-06-18 16:49

希望对你有帮助
4.1 sampling
According to GB/T 1605 solid technical methods, and with random access method is used to determine the sampling package; Final sampling is generally not less than 100 g.
4.2 identification test
When using the method of provisions of effective ingredients of identification when in doubt, with at least infrared spectrometry (IR) were identified, sample and the prototype infrared spectra of the no obvious difference.
4.3 3) tin content is determined
This method abstract
Sample with chloroform dissolved diphenyl ether as internal standard, content with using C18 reversed-phase liquid chromatographic column to methanol, phosphate solution as mobile phase, using internal standard method of the sample was on three of the tin high performance liquid chromatographic separation and determination.

4.3.5 determination steps
A) the preparation of the internal standard solution
Say take 1 g (accurate to 0.1 mg) diphenyl ether in 1000 mL RongLiangPing, and then using methanol dilution to scale.
B) the preparation of the prototype solution
Say to take three 0.1 g prototype was tin (accurate to 0.1 mg) in 25 mL RongLiangPing, and add 2 mL chloroform and 10-15 mL methanol, ultrasonic oscillations make its dissolution, and methanol to dilute scale, shaken, remove the accurate solution 1.0 mL, internal standard solution 1.0 mL in 25 mL RongLiangPing, diluted with methanol to scale, shake well.
C) the preparation of the sample solution.
Say to take three technical sample was about 0.1 g tin (accurate to 0.1 mg) in 25 mL RongLiangPing, plus 2 mL chloroform and 10-15 mL methanol, ultrasonic oscillations 5 min in 60-70 ℃ water dissolved, the place to room temperature. And methanol to dilute scale, shake well. Remove the accurate solution 1 mL, internal standard solution 1 mL in 25 mL.
4.5.2 determination steps
Accurate say take 1.0 g sample (accurate to 0.0002 g) in 50 ml beaker with pipette, remove the 10 ml chloroform in the beaker reagent of dissolved, then, will the beaker on ultrasonic cleaning is 5 min, oscillation frequency oscillation after the sample solution in the beaker all turn to 250 ml pear-shaped points in liquid, with pipette funnel to remove the 10 ml chloroform points three times in a beaker of specimens, washing after washing the solution will be all turn to 250 ml pear-shaped points, then take it in liquid funnel 50 ml methanol + water = 1 + 9 solution at the points of liquid funnel oscillation 5 min, sample by extraction should rest for 30 min after, and released organic layer, will extract into 250 ml bottle, garnish with conical 50 ml methanol + water = 1 + 9 solution in three washing points, after washing liquid funnel solution of collection on all 250 ml prism, add in the bottle 6, 8 drop 1 g/L bromine cresol green + 2 g/L methyl red = 3 + 1 to mix

热心网友时间：2022-06-18 16:50