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0. ÃÊ·Ï

1. ¼­ ·Ð

1.1 Coulometric titration
1.1.1 Coulometry
1.1.2 Titration
1.1.3 Coulometric titration
1.1.4 Instrumentation

1.2 Faradays law

1.3 Mechanism of arsenic coulometric titration

2. ½ÇÇè¹æ¹ý
2.1. »ç¿ëÇÑ ½Ã¾à ¹× ±â±¸
2.2. ½ÇÇè ÀýÂ÷
3. °á°ú ¹× °íÂû

4. °á ·Ð

Reference
º»¹®/³»¿ë
1.1 Coulometric titration
1.1.1 Coulometry
Àü±âºÐÇØ ½Ã¿¡ ¹ß»ýÇÑ ÀüÇÏ·®À» ÅëÇØ ƯÁ¤ ¹°ÁúÀÇ ¾çÀ» °áÁ¤ÇÏ´Â ºÐ¼® ¹æ¹ý Áß ÇϳªÀÌ´Ù. ÀüÀ§¸¦ ÀÏÁ¤ÇÏ°Ô À¯ÁöÇϸç ÇàÇÏ´Â Á¤ÀüÀ§(constant-potential) ¹æ½Ä°ú Àü·ù¸¦ ÀÏÁ¤ÇÏ°Ô À¯ÁöÇϸç ÇàÇÏ´Â Á¤Àü·ù(constant-current) ¹æ½ÄÀÌ ÀÖÀ¸¸ç, ÀüÀÚÀÇ °æ¿ì¿¡ ÀϹÝÀûÀ¸·Î Àü·®°è¸¦ ÀÌ¿ëÇÏ¿© Àü±â·®À» ÃøÁ¤Çϸç, ÈÄÀÚÀÇ °æ¿ì¿¡´Â Á¤Àü·ù¸¦ Èê·Á º¸³½ ½Ã°£¸¸ ¾Ë¸é µû·Î Àü·®°è¸¦ »ç¿ëÇÒ ÇÊ¿ä¾øÀÌ ´Ü¼øÇÏ°Ô Àü·ùÀÇ ¼¼±â(A)¿Í ½Ã°£(s)ÀÇ °öÀ¸·Î ÀüÇÏ·®(Q)À» ±¸ÇÒ ¼ö ÀÖ´Ù.

Fig.1. Calculation of Q at constant-potential coulometry
Àü·ù °ªÀÌ ½Ã°£¿¡ µû¶ó º¯È­Çϱ⠶§¹®¿¡ ÀûºÐÀ» ÀÌ¿ëÇÏ¿© ¸éÀûÀ» °è»êÇØÁà¾ß ÇÑ´Ù. µû¶ó¼­ ´Ü¼ø °è»êÀÌ ¾î·Æ±â¶§¹®¿¡ ÀϹÝÀûÀ¸·Î Àü·®°è¿¡ ÀÇÁ¸ÇÏ¿© Àü±â·®À» ÃøÁ¤ÇÑ´Ù.

Fig.2. Calculation of Q at constant-current coulometry
Àü·ù °ªÀÌ ½Ã°£¿¡ °ü°è ¾øÀÌ ÀÏÁ¤Çϱ⠶§¹®¿¡ ´Ü¼øÇÑ °ö¼À¸¸À¸·Îµµ Àü±â·®À» °è»êÇÒ ¼ö ÀÖ´Ù.
Âü°í¹®Çå
Committee on Medical and Biologic Effects of Environmental Pollutants, Arsenic, National Academy of Sciences, pp. 4-7 (1977)
Daniel C. Harris, Quantitative Chemical Analysis(8th ed.), W.H. Freeman and Company, p. 369-371(2010)
Sawyer. D. T, Chemistry Experiments for Instrumental Methods, John Wiley & Sons, pp. 151-155(1984)
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