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Title: Qualitative analysis of Pb liquid sample using laser-induced breakdown spectroscopy (LIBS)

Qualitative analysis of liquid sample containing 1,000 ppm of Pb was performed by using LIBS technique. In order to avoid splashing off of the liquid sample during laser irradiation, a sample pretreatment was done, namely the liquid sample was absorbed by using commercial available stomach medicine. Two kinds of absorbent materials were chosen in this experiment, first containing 125 mg activated carbon and second 600 mg activated attapulgite. These absorbent materials were used since carbon sample gives better absorption of infrared laser irradiation used in this experiment. In order to characterize the absorption process, three treatments were conducted in this experiment; first, without heating the sample but varying the absorption time before laser irradiation; second by varying the heating temperature after certain time of absorption process and third by varying the temperature only. The maximum emission intensity of Pb I 405.7 nm was found in the second treatment of heating the sample till 85°C after 30 minutes absorption of the liquid sample in both absorbent materials.
Authors:
; ;  [1] ;  [2] ;  [3]
  1. Physics Department, Faculty of Mathematics and Natural Sciences, Udayana University. Kampus Bukit Jimbaran, Badung, Bali, Indonesia 80361 (Indonesia)
  2. Chemistry Dept, Faculty of Mathematics and Natural Sciences, Udayana University. Kampus Bukit Jimbaran, Badung, Bali, Indonesia 80361 (Indonesia)
  3. Research Center of Maju Makmur Mandiri Foundation, 40 Srengseng Raya, Kembangan, Jakarta Barat 11630 (Indonesia)
Publication Date:
OSTI Identifier:
22218082
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1555; Journal Issue: 1; Conference: LCTAP 2012: International conference on theoretical and applied physics, Kalimantan (Indonesia), 19-20 Oct 2012; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ABSORBENTS; ABSORPTION; ACTIVATED CARBON; ATTAPULGITE; BREAKDOWN; HEAT TREATMENTS; HEATING; IRRADIATION; LASER RADIATION; LIQUID METALS; SPECTROSCOPY