학술논문
Lead determination in alginates.
Document Type
Article
Source
Quintessence International; Oct1978, Vol. 9 Issue 10, p101-104, 4p
Subject
Language
ISSN
00336572
Abstract
The article presents a method employing X-ray fluorescence as well as atomic absorption which permits lead determination in alginates in concentration range 10-300 parts per million (ppm) lead. As reported, Philips X-ray fluorescent equipment was used for X-ray fluorescent involving preparation of calibration samples containing given amounts of lead as a vital step whereas by atomic absorption where lead content was determined after X-ray fluorescent measurements it was found that the homogeneity of standards investigated by atomic absorption was better than 0.2% in lead. As stated, lead determination in alginates is essential as for alignate impression materials the potential hazard is inhalation by dentists or dental assistants.