Zirconium crucible for melting analytical sample, method of...

Chemistry: analytical and immunological testing – Metal or metal containing

Reexamination Certificate

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C436S072000, C436S077000, C436S079000, C436S080000, C436S082000, C436S083000, C436S084000, C422S401000, C422S557000, C422S560000, C422S908000, C075S010450, C065S032500, C501S086000, C501S102000, C501S105000, C427S446000, C423S076000, C423S446000, C423S608000, C205S192000, C205S400000, C164S497000

Reexamination Certificate

active

07927879

ABSTRACT:
Proposed is a zirconium crucible used for melting an analytical sample in the pretreatment of the analytical sample, wherein the purity of the zirconium crucible is 99.99 wt % or higher. In light of the recent analytical technology demanded of fast and accurate measurement of high purity materials, the present invention provides a zirconium crucible for melting an analytical sample, a method of preparing such analytical sample, and a method of analysis that enables the analysis of high purity materials by inhibiting the inclusion of impurities from the crucible regardless of difference in the analysts and their skill.

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