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Ag/AgCl Reference Electrode

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

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