Set of calibration standards

Chemistry: analytical and immunological testing – Composition for standardization – calibration – simulation,...

Reexamination Certificate

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C436S073000, C436S077000, C436S081000, C436S083000, C436S124000, C436S174000, C073S001010, C073S001030, C419S067000

Reexamination Certificate

active

07960177

ABSTRACT:
A standard calibration set having at least three calibration standards. Each standard is a molded article made of a thermoplastic polymer which contains the elements Cd, Cr, Pb, Hg and Br, with the Cr:Pb:Hg:Br:Cd ratio being different in each of the three calibration standards. Further disclosed is a method for manufacturing the calibration standards and their use in X-ray fluorescence analysis.

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patent: 2004-257809 (2004-09-01), None
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Nakano et al., Development of Calibrating Standards for X-Ray Fluorescence Spectrometry of Trace Metals in Platics, Adv. X-Ray. Chem. Anal., Japan 35, 2004, pp. 101-112.
Chiba et al., High-Sensitive and Nondestrictive Determination of Trace Heavy Toxic Elements in Plastics by Using Energy . . . , Adv. X-Ray, Chem. Anal. Japan 35, 2004, pp. 113-124.
Nakano et al., Prepareation of Calibrating Standard Materials for the Determination of Trace Elements in Plastics, Rigaku, January, 36, 2006, pp. 16-19.
Ochi et al., Analysis of Cd and Pb in Plastics Using Energy Dispersive X-ray (EDX) Fluorescence Spectrometer, Shimadzu, 2004, vol. 60, pp. 137-145.

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