Title:
MERCURY ANALYSIS DEVICE AND MERCURY ANALYSIS METHOD FOR MERCURY VAPOR DISCHARGE LAMP
Document Type and Number:
Japanese Patent JP3409646
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To classify mercury, filled in a mercury vapor discharge lamp, into effective mercury contributing to emission and consumed mercury not contributing to emission and determine both mercury.
SOLUTION: An SUS chamber 1 heated and kept to the operating temperature of a fluorescent lamp by a tape heater 3 is provided with a fluorescent lamp 12 and mercury (effective mercury) vaporized by breaking the fluorescent lamp 12 by a breaking jig 5 and evacuating is collected into a U-shape tube 10 by a liquid N2 trap 9. Mercury depositing to the internal wall of the U-shape tube 10 is dissolved and determined by an ICP emission analysis method, an atomic absorption method, or the like. As to mercury remaining on the fluorescent lamp 12 (consumed mercury), the fluorescent lamp 12 is taken out of the SUS chamber 1, and then the consumed mercury is eluted and determined in the same way as the effective mercury.
Inventors:
Tomoko Ataka
Koji Honda
Kazuhiro Matsuo
Yasuhiro Ikai
Koji Honda
Kazuhiro Matsuo
Yasuhiro Ikai
Application Number:
JP15478797A
Publication Date:
May 26, 2003
Filing Date:
June 12, 1997
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
G01N27/62; G01N1/22; (IPC1-7): G01N1/22; G01N27/62
Domestic Patent References:
| JP7288098A | ||||
| JP279352A | ||||
| JP5854546A | ||||
| JP56112630A | ||||
| JP55158538A | ||||
| JP623152U | ||||
| JP59152437U |
Other References:
松尾和尋、安宅とも子、猪飼泰博，蛍光ランプにおける水銀消費およびその抑制技術，Ｎａｔｉｏｎａｌ Ｔｅｃｈｎｉｃａｌ Ｒｅｐｏｒｔ，日本，１９９７年 ４月１８日，第４３巻 第２号，ｐ．８２−８７
Attorney, Agent or Firm:
Fumio Iwahashi (2 others)
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