The 16-year-old Amalaha provided an 'A' sample on July 25 which revealed traces of diuretics and masking agents.
She will have a 'B' sample tested at a laboratory in London on July 30.
Commonwealth Games Federation chief executive Mike Hooper said: "We (have) issued a formal notice of disclosure to an athlete following an adverse analytical finding as a consequence of an in-competition test.
Amalaha snatched a best of 85kg before managing 111kg in the clean and jerk for a total of 196kg, to become the youngest Commonwealth weightlifter gold medallist.
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