Znn3bq.jpeg
ÉÇÍ·´óѧº£Ñó¿ÆÑ§½ÓÊܵ÷¼Á
²é¿´: 2977  |  »Ø¸´: 5

suyouzhen

Ìú¸Ëľ³æ (СÓÐÃûÆø)

[½»Á÷] EDTA¸ßÎÂÃð¾úºó°×É«³Áµí

Åä0.5M EDTAÈÜÒº£¬È¡18.6µÄEDTAÄÆÑμÓÈë60mlÈ¥Àë×ÓË®£¬ÓÃ5MµÄNaOHµ÷pHµ½8.0ºó½Á°èÈ«²¿Èܽ⣬¶¨Èݵ½100mlºó¸ßÎÂÃð¾ú¡£½á¹ûÃð¾úÖ®ºóÄóöÀ´·¢ÏÖÓв»ÉÙ°×É«Ðõ×´³Áµí¡£Ö®Ç°Ò²³öÏÖ¹ýÉÙÁ¿³Áµí£¬Õâ´ÎÌ«¶àÁË£¬²»ÖªµÀʲôԭÒò¡£
ÊDz»ÊÇÒòΪÃð¾úµÄʱºòË®·ÖÕô·¢Ì«¶àµ¼ÖÂEDTAÎö³öÁË£¿ÓÐûÓÐʲôºÃµÄ½â¾ö°ì·¨£¿¹ýÂËÃð¾ú¿É²»¿ÉÒÔ£¿ÎÒÊÇÌáDNAÓõġ£Ð»Ð»°¡£¡
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
¡ï
suyouzhen(½ð±Ò+1): лл²ÎÓë
2Â¥2014-06-22 06:07:38
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
¡ï
suyouzhen(½ð±Ò+1): лл²ÎÓë
3Â¥2014-06-22 06:09:24
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
4Â¥2014-06-22 07:28:57
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

silicare

ÈÙÓþ°æÖ÷ (ÎÄ̳¾«Ó¢)

ºÏ»ï´´Òµ°æ¼æÖ°°æÖ÷

ÓÅÐã°æÖ÷

¡ï ¡ï
Сľ³æ: ½ð±Ò+0.5, ¸ø¸öºì°ü£¬Ð»Ð»»ØÌû
suyouzhen(Î÷ÃÅ´µÑ©170´ú·¢): ½ð±Ò+1, ¹ÄÀø»ØÌû½»Á÷ 2014-06-22 12:36:05
ÓÐʱºò´¿¶È²»¹»»Ø³öÕâÖÖÇé¿ö£¬ÕÒ³§¼Ò»»¸öÅú´Î¾ÍÐÐÁË
5Â¥2014-06-22 08:16:08
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

lixg

Ìú¸Ëľ³æ (ÕýʽдÊÖ)

¡ï ¡ï ¡ï
Сľ³æ: ½ð±Ò+0.5, ¸ø¸öºì°ü£¬Ð»Ð»»ØÌû
kx444555: ½ð±Ò+2, ¹ÄÀø½»Á÷ 2014-06-23 08:25:35
ҪôÊÇEDTAÄÆÑβ»´¿£¬ÒªÃ´ÊÇË®µÄ´¿¶ÈµÍ¡£½¨ÒéÓó¬´¿Ë®£¨Ë«ÕôË®£©ÅäÖÆ¡£
6Â¥2014-06-22 11:34:45
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ suyouzhen µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] Çóµ÷¼ÁѧУ +11 ²»»á³ÔÈâ 2026-04-13 12/600 2026-04-14 19:38 by Art1977
[¿¼ÑÐ] ²ÄÁϹ¤³Ì085601£¬270Çóµ÷¼Á +42 @ASDF1234 2026-04-08 46/2300 2026-04-14 18:12 by åÐÒ£ÈýÀÉ
[¿¼ÑÐ] 291 Çóµ÷¼Á +36 »¯¹¤2026½ì±ÏÒµÉ 2026-04-09 37/1850 2026-04-14 17:56 by lhj2009
[¿¼ÑÐ] Çóµ÷¼Á +20 MAXâê㯠2026-04-09 22/1100 2026-04-14 14:57 by ¶À×íÃι³Ç
[¿¼ÑÐ] ±¾¿Æ211£¬±¨¿¼085601-310·Ö +16 ararak 2026-04-13 16/800 2026-04-14 14:55 by Delta2012
[¿¼ÑÐ] 085404 298·ÖÇóµ÷¼Á +11 ºôÀ²ºôÀ²ºôºôºô 2026-04-10 12/600 2026-04-14 08:38 by wfj257
[¿¼ÑÐ] 2026˶ʿµ÷¼Á_Äܶ¯_ºÓÄÏũҵ´óѧ +4 ºÓÄÏũҵ´óѧ-ÄÜ 2026-04-12 4/200 2026-04-13 22:01 by bljnqdcc
[¿¼ÑÐ] ²ÄÁÏ¿¼Ñе÷¼Á +29 ÔÆÄ¾´ï´ï 2026-04-11 31/1550 2026-04-13 13:32 by lyh³ÀÏʦ
[¿¼ÑÐ] Ò»Ö¾Ô¸Õã´óÉúÎï325·ÖÇóµ÷¼Á +9 zysheng 2026-04-12 9/450 2026-04-12 22:31 by yuyin1233
[¿¼ÑÐ] 291Çóµ÷¼Á +11 ¹ØÒä±±. 2026-04-09 12/600 2026-04-12 10:32 by ÄæË®³Ë·ç
[¿¼ÑÐ] µ÷¼Á +10 Ö»ÐðÀë±ð´Ç 2026-04-09 12/600 2026-04-11 20:57 by ÄæË®³Ë·ç
[¿¼ÑÐ] Çóµ÷¼Á +6 µçÆø300Çóµ÷¼Á²» 2026-04-08 6/300 2026-04-11 20:14 by ÄæË®³Ë·ç
[¿¼ÑÐ] µ÷¼Á +4 µçÆø300Çóµ÷¼Á²» 2026-04-08 7/350 2026-04-11 10:44 by ×ÏêØ×ÏÆå
[¿¼ÑÐ] ¹¤¿Æ273µ÷¼Á +6 X1999 2026-04-09 7/350 2026-04-11 10:23 by zhq0425
[¿¼ÑÐ] ¼ÆËã»úÀàÇóµ÷¼Á£¬22408-274·Ö +7 Éϰ¶deС³æ 2026-04-09 8/400 2026-04-10 19:56 by fxue1114
[¿¼ÑÐ] ÖпÆÔº×Ü·Ö315Çóµ÷¼Á +8 lallalh 2026-04-09 8/400 2026-04-10 19:30 by dick_runner
[¿¼ÑÐ] 314Çóµ÷¼Á +18 xhhdjdjsjks 2026-04-09 19/950 2026-04-10 18:53 by HPUCZ
[¿¼ÑÐ] Ò»Ö¾Ô¸»ª¶«Ê¦·¶ÉúÎïѧ326·Ö£¬Çóµ÷¼Á +8 Áõīī 2026-04-09 8/400 2026-04-10 12:00 by pengliang8036
[¿¼ÑÐ] Òѵ÷¼Á +18 ²ñ¿¤Ã¨_ 2026-04-09 19/950 2026-04-09 22:10 by ²ñ¿¤Ã¨_
[¿¼ÑÐ] Çóµ÷¼Á +3 ÖíÈâ¶Õ·ÛÌõcc 2026-04-08 4/200 2026-04-09 10:05 by ÖíÈâ¶Õ·ÛÌõcc
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û