EP 0988524 A1 20000329 - SOLID-STATE FLUOROMETER AND METHODS OF USE THEREFOR
Title (en)
SOLID-STATE FLUOROMETER AND METHODS OF USE THEREFOR
Title (de)
FESTKÖRPERFLUORIMETER UND ANWENDUNGSVERFAHREN
Title (fr)
FLUOROMETRE A SEMI-CONDUCTEURS ET SES PROCEDES D'UTILISATION
Publication
Application
Priority
- US 9812054 W 19980609
- US 87304697 A 19970611
- US 87745297 A 19970617
- US 8746698 A 19980528
Abstract (en)
[origin: WO9857153A1] The fluorescent resulting from the diode laser (12) or LED excitation source (112) is imaged (optionally with a lens) (14, 114) onto a silicon photodiode detector (16, 116). An optical filter (18, 118) is placed between the sample cell (20, 120) and the photodiode detector to reject scattered excitation light. The output from the photodiode is amplified (22, 122) to produce an output voltage proportional to the quantity of fluorescence striking the photodiode detector. Since fluorescence is proportional to the concentration of the fluorophore present in the sample stream, and the concentration of the fluorophore is further proportional to the concentration of a chemical treatment agent or other additive present, then continuous monitoring of a voltage output may be performed which allows real-time measurement of the amount of chemical treatment agent or other additive present in the system.
IPC 1-7
IPC 8 full level
C02F 1/00 (2006.01); G01N 21/64 (2006.01); G01N 33/18 (2006.01)
CPC (source: EP KR)
G01N 21/64 (2013.01 - KR); G01N 21/643 (2013.01 - EP)
Citation (search report)
See references of WO 9857153A1
Designated contracting state (EPC)
AT BE DE ES FI FR GB IE IT NL PT SE
DOCDB simple family (publication)
WO 9857153 A1 19981217; AU 737221 B2 20010816; AU 8065798 A 19981230; CN 1183382 C 20050105; CN 1260043 A 20000712; EP 0988524 A1 20000329; EP 1496351 A2 20050112; EP 1496351 A3 20060315; EP 1496351 B1 20130327; ES 2403051 T3 20130513; HK 1027624 A1 20010119; JP 2002514308 A 20020514; KR 100707512 B1 20070416; KR 20010013682 A 20010226; MY 132154 A 20070928; PT 1496351 E 20130423
DOCDB simple family (application)
US 9812054 W 19980609; AU 8065798 A 19980609; CN 98806045 A 19980609; EP 04022872 A 19980609; EP 98928987 A 19980609; ES 04022872 T 19980609; HK 00106687 A 20001023; JP 50316899 A 19980609; KR 19997011694 A 19991210; MY PI9802558 A 19980609; PT 04022872 T 19980609