Home > Term: trace element
trace element
An element in a sample that has an average concentration of less than 100 parts per million atoms or less than 100 micrograms per gram.
- ส่วนหนึ่งของคำพูด: noun
- อุตสาหกรรม/ขอบเขต: Chemistry
- Category: Analytical chemistry
- Company: McGraw-Hill
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ผู้สร้าง
- Dr. James
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