ANALYZING METHOD OF METAL NIOBIUM OR NIOBIUM COMPOUND

ANALYZING METHOD OF METAL NIOBIUM OR NIOBIUM COMPOUND

PROBLEM TO BE SOLVED: To provide an analyzing method for efficiently analyzing a chemical component contained as impurities in metal niobium or a niobium compound in a short time with a high sensitivity having a quantitative lower limit of ng/g level. SOLUTION: The metal niobium or niobium compound...

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1. Verfasser: KOZONO SHUJI
Format: Patent
Sprache:eng
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INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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description PROBLEM TO BE SOLVED: To provide an analyzing method for efficiently analyzing a chemical component contained as impurities in metal niobium or a niobium compound in a short time with a high sensitivity having a quantitative lower limit of ng/g level. SOLUTION: The metal niobium or niobium compound is dissolved in a solution containing hydrogen fluoride, and introduced to a separation device after the acid concentration of the solution is optimized, whereby the intended chemical component is separated in the state where the outflow of niobium which obstructs the measurement by a measuring device is suppressed as much as possible. COPYRIGHT: (C)2003,JPO
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SOLUTION: The metal niobium or niobium compound is dissolved in a solution containing hydrogen fluoride, and introduced to a separation device after the acid concentration of the solution is optimized, whereby the intended chemical component is separated in the state where the outflow of niobium which obstructs the measurement by a measuring device is suppressed as much as possible. 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subjects INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
title ANALYZING METHOD OF METAL NIOBIUM OR NIOBIUM COMPOUND
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