| ²é¿´: 1658 | »Ø¸´: 6 | ||
| ±¾Ìû²úÉú 1 ¸ö ·ÒëEPI £¬µã»÷ÕâÀï½øÐв鿴 | ||
Ìú¼×Æï±øÄ¾³æ (ÕýʽдÊÖ)
|
[ÇóÖú]
Çó·ÒëÒ»¸ö¾ä×Ó£¬ÃÀ¹ú»·¾³¼ì²âµÄÒ»¸ö±ê×¼¡£
|
|
|
Çó·ÒëÒ»¸ö¾ä×Ó£¬ÃÀ¹ú»·¾³¼ì²âµÄÒ»¸ö±ê×¼¡£²¢ÇëϸÐĽâÊÍÒ»ÏÂÎÒµÄÒÉÎÊ¡£ Use replicates containing 5.00 mL standard NaCl solution and 10 mg sodium bicarbonate (NaHCO3) diluted to 100 mL with distilled water. ÎÒ³¢ÊÔ·Ò룺ʹÓã¿°üº¬ÓÐ5.00 mL±ê×¼ÂÈ»¯ÄÆÈÜÒººÍ100mLÈÜÓÐ10mg̼ËáÇâÄÆµÄÕôÁóË®¡£ Òɵã1£ºreplicates×÷ºÎ½â£¿¸´ÖÆÆ·ºÃÏñ˵²»Í¨£¬Æ½ÐвⶨҲ²»Ì«ºÃÀí½â¡£ Òɵã2£ºdiluted to 100 mL with distilled waterÊÇÐÎÈÝreplicates»¹ÊÇNaHCO3£¿ Òɵã3£ºuseµÄ±öÓïÊÇreplicates£¬»¹ÊÇreplicatesºÍNaHCO3£¿Ò²¾ÍÊÇandÁ¬µÄÊÇÄÄÁ½¸ö£¿ ÉÏÏÂÎÄÔÚ´Ë£º 2) Standard mercuric nitrate titrant, 0.007 05M (0.0141N): Dissolve 2.3 g Hg(NO3)2 or 2.5g Hg(NO3)2⋅H2O in 100 mL distilled water containing 0.25 mL conc HNO3. Dilute to just under 1L. Make a preliminary standardization by following the procedure described in ¶ 4a. Use replicates containing 5.00 mL standard NaCl solution and 10 mg sodium bicarbonate (NaHCO3) diluted to 100 mL with distilled water. Adjust titrant to 0.0141N and make a final standardization; 1.00 mL = 500 ¦Ìg Cl¨C. Store away from light in a dark bottle. ÎҵĶÎÂä·Ò룺 2£©ÏõËṯµÎ¶¨¼Á±ê×¼£¬0.00705M£¨0.0141N£©£ºÈܽâ2.3gÏõËṯ»òÕß2.5gһˮÏõËṯµ½100mLº¬ÓÐ0.25mLŨÁòËáµÄÕôÁóË®ÖУ¬Ï¡Ê͵½ÕýºÃ1L¡£°´ÕÕ4aÖÐÃèÊöµÄ²½Öè½øÐгõ²½±ê¶¨¡£Ê¹Óã¿°üº¬ÓÐ5.00 mL±ê×¼ÂÈ»¯ÄÆÈÜÒººÍ100mLÈÜÓÐ10mg̼ËáÇâÄÆµÄÕôÁóË®¡£µ÷ÕûµÎ¶¨Òºµ½0.0141N£¬²¢½øÐÐÒ»´Î×îÖձ궨£¬Ã¿1.00mLÖк¬ÓÐ500 ¦Ìg Cl-¡£ÔÚÉîɫƿÖбܹⱣ´æ¡£ |
» ²ÂÄãϲ»¶
Ò»Ö¾Ô¸ÄϾ©º½¿Õº½Ìì´óѧ ²ÄÁÏÓ뻯¹¤329·ÖÇóµ÷¼Á
ÒѾÓÐ7È˻ظ´
Ò»Ö¾Ô¸C9µÄ»¯Ñ§¹¤³Ì£¨085602£© 340·Ö£¬¸Ð¾õУÄÚµ÷¼ÁÎÞÍû£¬Çóµ÷¼Á
ÒѾÓÐ12È˻ظ´
312Çóµ÷¼Á
ÒѾÓÐ4È˻ظ´
²ÄÁÏר˶322
ÒѾÓÐ9È˻ظ´
Çóµ÷¼Á
ÒѾÓÐ7È˻ظ´
085600²ÄÁÏÓ뻯¹¤301·ÖÇóµ÷¼ÁԺУ
ÒѾÓÐ8È˻ظ´
Ò»Ö¾Ô¸ ½ÄÏ´óѧ 085602 »¯¹¤×¨Ë¶ 338·ÖÇóµ÷¼Á
ÒѾÓÐ14È˻ظ´
070300»¯Ñ§Ñ§Ë¶311·ÖÇóµ÷¼Á
ÒѾÓÐ13È˻ظ´
²ÄÁϵ÷¼Á
ÒѾÓÐ9È˻ظ´
Ò»Ö¾Ô¸ºÓ±±¹¤Òµ´óѧ²ÄÁϹ¤³Ì£¬³õÊÔ344Çóר˶µ÷¼Á
ÒѾÓÐ4È˻ظ´

Ìú¼×Æï±ø
ľ³æ (ÕýʽдÊÖ)
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ¹ó±ö: 0.253
- ½ð±Ò: 3416.2
- ºì»¨: 3
- Ìû×Ó: 877
- ÔÚÏß: 25.8Сʱ
- ³æºÅ: 504145
- ×¢²á: 2008-02-15
- ÐÔ±ð: GG
- רҵ: ·ÖÎö»¯Ñ§

2Â¥2011-10-25 10:48:51
xiaoqihu
Ìú¸Ëľ³æ (ÖøÃûдÊÖ)
- ·ÒëEPI: 88
- Ó¦Öú: 1 (Ó×¶ùÔ°)
- ¹ó±ö: 0.005
- ½ð±Ò: 9724.8
- É¢½ð: 7
- ºì»¨: 4
- Ìû×Ó: 1337
- ÔÚÏß: 105.6Сʱ
- ³æºÅ: 590066
- ×¢²á: 2008-08-31
- רҵ: ÓлúºÏ³É
¡¾´ð°¸¡¿Ó¦Öú»ØÌû
¡ï
°®ÓëÓêÏÂ(½ð±Ò+1): 2011-10-25 11:58:49
Ìú¼×Æï±ø(½ð±Ò+10, ·ÒëEPI+1): ¸Ðл¡£ÎÒÏëÒ²ÊÇÕâÑù¡£ 2011-10-25 13:03:50
°®ÓëÓêÏÂ(½ð±Ò+1): 2011-10-25 11:58:49
Ìú¼×Æï±ø(½ð±Ò+10, ·ÒëEPI+1): ¸Ðл¡£ÎÒÏëÒ²ÊÇÕâÑù¡£ 2011-10-25 13:03:50
|
̽ÌÖһϣ¬ ÎÒÈÏΪreplicates°üº¬µÄÊÇ 5.00 mL standard NaCl solution and 10 mg sodium bicarbonate (NaHCO3) È»ºóÓÃÕôÁóˮϡÊ͵½100ml ²»Öª¶Ô·ñ |

3Â¥2011-10-25 11:27:39
Ìú¼×Æï±ø
ľ³æ (ÕýʽдÊÖ)
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ¹ó±ö: 0.253
- ½ð±Ò: 3416.2
- ºì»¨: 3
- Ìû×Ó: 877
- ÔÚÏß: 25.8Сʱ
- ³æºÅ: 504145
- ×¢²á: 2008-02-15
- ÐÔ±ð: GG
- רҵ: ·ÖÎö»¯Ñ§

4Â¥2011-10-25 12:31:30
huanglibing
ͳæ (СÓÐÃûÆø)
- ·ÒëEPI: 3
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ½ð±Ò: 146.2
- ºì»¨: 2
- Ìû×Ó: 56
- ÔÚÏß: 13.3Сʱ
- ³æºÅ: 1447070
- ×¢²á: 2011-10-17
- ÐÔ±ð: GG
- רҵ: ÄÜÔ´»¯¹¤
¡¾´ð°¸¡¿Ó¦Öú»ØÌû
Ìú¼×Æï±ø(½ð±Ò+20): ºÇºÇ£¬ÎÒÒ²ÏëÃ÷°×ÁË¡£²»¹ý±»ÄãÇÀÏÈÁË¡£¸Ðл°¡¡£´óÄÃÒÔºóÇë¶àÖ¸½Ì°¡¡£Ë³±ãÎÊÎÊindicator-acidifier reagentÓ¦¸ÃÔõô·Ò룿»¹ÓÐÎÄÕ¿ªÍ·µÄoccurrence£¬·Òë³É·¢Éú¡¢ÓÉÀ´¶¼²»Êæ·þ¡£ 2011-10-25 13:05:16
|
2£©±ê×¼ÏõËṯµÎ¶¨±ê×¼ÒºÅäÖÆ£¬0.00705M£¨0.0141N£©£ºÈܽâ2.3gÏõËṯ»òÕß2.5gÒ»´øÁ½¸ö½á¾§Ë®µÄÏõËṯµ½100mLº¬ÓÐ0.25mLÏõËáµÄÕôÁóË®ÖУ¬Ï¡ÊÍÖÁ1L¡£°´ÕÕ4aÖÐÃèÊöµÄ²½Öè½øÐгõ²½±ê¶¨¡£Óú¬ÓÐ5.00 mL±ê×¼ÂÈ»¯ÄÆÈÜÒººÍ10mg̼ËáÇâÄÆÓÃÕôÁóˮϡÊÍÖÁ100mLµÄÈÜÒºÖØ¸´µÎ¶¨¡£µ÷Õû±ê×¼µÎ¶¨Òºµ½0.0141N£¬½øÐÐ×îÖձ궨£¬Ã¿1.00mLÖк¬ÓÐ500 ¦Ìg Cl-¡£ÔÚÉîɫƿÖбܹⱣ´æ¡£ |

5Â¥2011-10-25 12:58:22
Ìú¼×Æï±ø
ľ³æ (ÕýʽдÊÖ)
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ¹ó±ö: 0.253
- ½ð±Ò: 3416.2
- ºì»¨: 3
- Ìû×Ó: 877
- ÔÚÏß: 25.8Сʱ
- ³æºÅ: 504145
- ×¢²á: 2008-02-15
- ÐÔ±ð: GG
- רҵ: ·ÖÎö»¯Ñ§

6Â¥2011-10-25 13:09:59
Ìú¼×Æï±ø
ľ³æ (ÕýʽдÊÖ)
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ¹ó±ö: 0.253
- ½ð±Ò: 3416.2
- ºì»¨: 3
- Ìû×Ó: 877
- ÔÚÏß: 25.8Сʱ
- ³æºÅ: 504145
- ×¢²á: 2008-02-15
- ÐÔ±ð: GG
- רҵ: ·ÖÎö»¯Ñ§

7Â¥2011-10-25 13:15:35














»Ø¸´´ËÂ¥