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wangenfei
½ð³æ (ÕýʽдÊÖ)
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czhai: ½ð±Ò+3, ·ÒëEPI+1, xiexie 2013-08-29 09:09:33
czhai: ½ð±Ò+3, ·ÒëEPI+1, xiexie 2013-08-29 09:09:33
| 2 g sample , accurate to 0.5 mg, was dried for 2 hours with the temperature of 103 ¡À 2 ¡æ in an electronic thermostat, subsequently transferred to a desiccator and cooled to room temperature, generally for about 30 minutes , then be weighed and calculated. |
2Â¥2013-08-28 14:12:53
wangenfei
½ð³æ (ÕýʽдÊÖ)
´ó·É
- ·ÒëEPI: 1
- Ó¦Öú: 4 (Ó×¶ùÔ°)
- ½ð±Ò: 2916.2
- É¢½ð: 306
- ºì»¨: 3
- Ìû×Ó: 537
- ÔÚÏß: 163.3Сʱ
- ³æºÅ: 967266
- ×¢²á: 2010-03-10
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- רҵ: ÉúÎﻯ¹¤ÓëʳƷ»¯¹¤
3Â¥2013-08-28 14:13:15
skypeshaw
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czhai: ½ð±Ò+2 2013-08-29 09:09:40
czhai: ½ð±Ò+2 2013-08-29 09:09:40
| Weigh 2g(to the nearest 0.5mg) sample ,then transfer into the electric oven, rise the heating temperature to 103 ¡ã ¡À 2 ¡ã, keep drying for 2 hours and then placed it in a desiccator to cool to room temperature, which generally takes 30 minutes, lastly, you need to weigh the sample calculately . |
4Â¥2013-08-28 16:31:39














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