| 查看: 666 | 回复: 3 | |||
| 本帖产生 1 个 翻译EPI ，点击这里进行查看 | |||
| 当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖 | |||
[交流]
请帮忙翻译一下不多。
|
|||
|
精密称取11.92mg的GA对照品，加甲醇定容到100ml作为储备液，分别移取取上述储备液2ml，3ml，4ml，5ml，6ml于25ml容量瓶中用甲醇定容，375nm测定吸光度，绘出GA标准曲线，得标准曲线方程A=0.02519*C+0.02003(R=0.9997). 精密度试验：选取标准曲线范围内的低、中、高、三个浓度，375nm测定吸光度，计算RSD。 |
回复此楼» 猜你喜欢
有没有人能给点建议
已经有5人回复
-
假如你的研究生提出不合理要求
已经有12人回复
-
实验室接单子
已经有7人回复
-
全日制（定向）博士
已经有5人回复
-
萌生出自己或许不适合搞科研的想法，现在跑or等等看？
已经有4人回复
-
Materials Today Chemistry审稿周期
已经有4人回复
-
参与限项
已经有3人回复
-
对氯苯硼酸纯化
已经有3人回复
-
所感
已经有4人回复
-
要不要辞职读博？
已经有7人回复
191662530
金虫 (正式写手)
学的够本就行
- 应助: 3 (幼儿园)
- 金币: 2726.9
- 红花: 1
- 帖子: 391
- 在线: 469.6小时
- 虫号: 1045655
- 注册: 2010-06-22
- 专业: 金属材料的磨损与磨蚀
yangsitao(金币+2): 2010-06-28 19:31:49
| In order to prepare a reserve solution,Weigh 11.92mg of GA Precision reference standard, plus a constant volume of 100ml of methanol as a stock solution were pipet to take the stock solution 2ml, 3ml, 4ml, 5ml, 6ml in 25ml volumetric flask using methanol, 375nm measured absorbance , draw the GA standard curve, standard curve equation was A = 0.02519 * C +0.02003 (R = 0.9997). precision test: Select the standard curve range of low, medium, high, three levels, 375nm measured absorbance, calculated RSD |
4楼2010-06-27 19:35:10
noleg
金虫 (小有名气)
- 翻译EPI: 52
- 应助: 0 (幼儿园)
- 贵宾: 0.005
- 金币: 1423.7
- 帖子: 161
- 在线: 43.9小时
- 虫号: 932452
- 注册: 2009-12-23
- 性别: GG
★ ★
发芽土豆(金币+1):谢谢参与 2010-06-25 20:54:46
polymerpark(金币+1):再给一金币，给予鼓励~~ 2010-06-25 22:01:48
yangsitao(金币+4, 翻译EPI+1): 2010-06-27 17:24:19
发芽土豆(金币+1):谢谢参与 2010-06-25 20:54:46
polymerpark(金币+1):再给一金币，给予鼓励~~ 2010-06-25 22:01:48
yangsitao(金币+4, 翻译EPI+1): 2010-06-27 17:24:19
|
In order to prepare a reserve solution, accurently weigh 11.92g of check sample GA, add 100mL of methane into a volumetric flask to the scale mark. To five 25mL volumetric flasks, 2mL,3mL,4mL,5mL,6mL of the reserve solution is added and additional methane is added to the scale mark. Determine the absorbency at 375nm, draw standard curve of GA, from which derive the standard curve equation A=0.02519*C+0.02003(R=0.9997). Accuracy test: choose three point on standard curve represent low, media, and high concentration respectively, determine the absorbency at 375nm, and then calculate the value of RSD. |
2楼2010-06-25 19:21:04
Atalpha
木虫 (著名写手)
- 应助: 1 (幼儿园)
- 金币: 3261.9
- 红花: 4
- 帖子: 1684
- 在线: 131.4小时
- 虫号: 925795
- 注册: 2009-12-11
- 性别: GG
- 专业: 植物学
3楼2010-06-25 21:07:40