Ag/AgCl Reference Electrode
¿ë µµ
n
ÀϹÝÀü±âÈÇÐ ½ÇÇè¿¡ ³Î¸® »ç¿ë
n
Àü±âÈÇÐ ºÐ¼® µî
Àå Á¡
n
±âÁØÀü±ØÀ¸·Î¼ÀÇ ¾ÈÁ¤¼º
n
°£ÆíÇÑ »ç¿ë
n
³»ºÎ¿¡ ¼öÀºÀÌ ¾øÀ½
n
»ê¼º¿ë¾×¿¡¼ ¾ÈÁ¤ÇÔ
n
ºñ±³Àû °í¿Â¿¡¼ »ç¿ë °¡´É (0~95¢ªC)
»ç¿ë¿Âµµ°¡ ¿Ã¶ó°¨¿¡ µû¶ó Àü±ØÀü¾ÐÀÌ ³·¾ÆÁü.
°í¿Â ½Ã Æ÷È filling solution »ç¿ë ?
100¢ªC ÀÌ»óÀÇ °í¿Â¿¡¼ »ç¿ëÇÏ´Â
Àü±ØÀº Molten Silver Chloride¿¡ Àº¼±(Silver
wire)À» ³Ö¾î »ç¿ëÇÏ´Â Àü±ØÀ̰ųª
Zn/Zn(II)Àü±ØÀ» »ç¿ë.
ÁÖÀÇ»çÇ×
n
Light : Àڿܼ±Àº AgClÀ»
ºÐÇؽÃÄÑ silver(0)¸¦ »ý¼º½ÃÅ°´Âµ¥ ÀÌ´Â Àü±ØÀ» °Å¹«½º¸§ÇÏ°Ô
º¸ÀÌ°Ô ÇÕ´Ï´Ù. ½ÇÇè½Ç¿¡¼ÀÇ
Çü±¤µî ÇÏ¿¡¼´Â ¹«°üÇϳª Àü±ØÀ» âƲ °°Àº °÷¿¡ º¸°ü
ÇÏÁö´Â ¸¶½Ê½Ã¿À.
n
Base : [OH-]ÀÇ ³óµµ°¡ ´ë·« 0.1M Á¤µµµÇ¸é Ag2OÀ̳ª AgOHÀÌ
Çü¼ºµÉ °ÍÀÔ´Ï´Ù.
À̶§ Àü±ØÀÇ potentialÀº Ag/AgCl/Ag2OÀÇ
ÇÕÃÄÁø °ªÀÌ µÉ °ÍÀ̸ç pH¿¡ ÀÇÁ¸ÇÏ°Ô
µË´Ï´Ù. ¶ÇÇÑ
Çü¼ºµÈ Ag2O Àü±Ø frit(tipºÎºÐ)À» ±¸¼ºÇÏ°í ÀÖ´Â ¹Ì¼¼ÇÑ ±¸¸ÛÀÇ ¸·ÈûÀÇ
¿øÀÎÀÌ µÉ ¼ö ÀÖ½À´Ï´Ù.
n
NH3 Buffers : NH3´Â
silver¿Í º¹ÇÕü¸¦ Çü¼ºÇÒ ¼ö ÀÖÀ¸¸ç AgClÀ»
³ìÀÏ ¼ö ÀÖ½À´Ï´Ù.
n
Sulfide : Silver Sulfide¸¦ Çü¼ºÇÒ ¼ö ÀÖÀ¸¸ç ÀÌ´Â ºÒ¿ë¼ºÀ̱⠶§¹®¿¡ fritÀÇ
¸·ÈûÀÇ
¿øÀÎÀÌ µÉ ¼ö ÀÖ½À´Ï´Ù.
n
Chloride ÀÌ¿ÂÀÌ ¹®Á¦°¡ µÉ °æ¿ì Hg/Hg2SO4 Àü±ØÀ» ÃßõÇÕ´Ï´Ù.
n
¾ËÄ®¸®¿ë¾×¿¡¼ Àå½Ã°£ »ç¿ëÇÒ °æ¿ì OH- ÀÌ¿ÂÀÌ ±âÁØÀü±Ø ¼ÓÀ¸·Î
µé¾î°¡ pH°¡ ¾ËÄ®¸®
ÂÊÀ¸·Î º¯ÇÏ¿© Àü±ØÀü¾ÐÀÌ ¹Ù²ð ¼ö ÀÖ½À´Ï´Ù. ÀÌ·² °æ¿ì Hg/HgO Àü±ØÀ» ÃßõÇÕ´Ï´Ù.
n
Filling Solution¿¡ µû¶ó (Á¾·ù ¹× ³óµµ) Àü±ØÀü¾ÐÀÌ ´Þ¶óÁý´Ï´Ù. (KCl, NaCl,
& LiCl µî)
KCl filling solution »ç¿ë ½Ã Perchlorate ÀüÇØÁú¿¡¼ KClO4 °¡
°áÁ¤ÈµÇ¾î vycor tipÀÇ
¹Ì¼¼ ±¸¸ÛÀ» ¸·À» ¼ö ÀÖ½À´Ï´Ù.
ÀÌ·² °æ¿ì NaCl filling
solutionÀ» »ç¿ëÇÏ½Ç °ÍÀ» Ãßõ
ÇÕ´Ï´Ù. Æ÷È filling solutionÀº °í¿Â¿¡¼ ÀûÇÕÇϳª ¼®Ãâ¹°ÀÌ ÀúÇ×À»
Å°¿ï ¼ö ÀÖ½À´Ï´Ù.
°í¿Â ÀÀ¿ëÀÌ ¾Æ´Ñ °æ¿ì 3.5M KClÀ̳ª 3M NaCl filling solutionÀ» »ç¿ëÇϽʽÿÀ.
Product Name
|
Photo
|
Length (mm)
|
O.D.
(mm)
|
Porous Junciton
|
Electrode Part
|
Maker
|
Part No.
|
RE-5B
Ag/AgCl Reference
Electrode
|
|
75
|
6.0
|
Vycor®
|
Ag/AgCl/NaCl
(3M)
|
BAS
|
MF-2052
MF-2079
(3/pk)
|
Accessories:
Replaceable Vycor Tips, 5/pk (Part No. MF-2064)
|
RE-6
Ag/AgCl Reference
Electrode
|
|
30
|
6.0
|
Ceramics
|
Ag/AgCl/NaCl
(3M)
|
BAS
|
MW-2030
MF-2078
(3/pk)
|
Ag/AgCl Reference
Electrode
|
|
65
|
4
|
Vycor®
|
Ag/AgCl/KCl
(1M)
|
CHI
|
CHI111
CHI111P
(3/pk)
|
Ag/AgCl
Reference Electrode for EQCM
|
|
55
|
4
|
Vycor®
|
Ag/AgCl/KCl
(1M)
|
CHI
|
CHI128
|
RE-1B
Ag/AgCl Reference
Electrode
(for CV)
|
|
70
|
6
|
Vycor®
|
Ag/AgCl/NaCl
(3M)
|
ALS
|
012167
|
RE-1S
Ag/AgCl Reference
Electrode
(for SECM)
|
|
40
|
4
|
Vycor®
|
Ag/AgCl/NaCl
(3M)
|
ALS
|
012168
|
RE-1C
Ag/AgCl Reference
Electrode
|
|
90
|
6
|
Ceramic
|
Ag/AgCl/KCl
Saturated KCl
|
ALS
|
002058
|
RE-3V
Ag/AgCl Reference
Electrode
(for flow cell)
|
|
48
|
10
|
Vycor®
|
Ag/AgCl/NaCl
(3M)
|
ALS
|
012169
|
Ag/AgCl Reference
Electrode
|
|
100
|
9
|
Vycor®
|
Ag/AgCl Saturated KCl
|
Koslow
|
1004
|
Accessories:
Replaceable Vycor Tips, 5/pk (Part No. 5011)
|
Ag/AgCl Reference
Electrode
|
|
110
(Cable: 10cm)
|
9
|
Vycor®
|
Ag/AgCl/KCl
|
Gamry
|
930-00015
|
Miniature
Ag/AgCl Reference Electrode
|
|
|
2
|
Standard junction
|
Ag/AgCl/KCl
(3M)
body : Teflon
|
Cypress
|
66-EE008
|
Fiber junction
|
"no-leak"
Ag/AgCl Reference Electrode
|
|
|
2
|
Standard junction
|
Ag/AgCl/KCl
(3.4M)
body : PEEK
|
Cypress
|
66-EE009
|