Sentence examples for substance is present from inspiring English sources
So long as the queen substance is present, all members are informed that the queen is healthy.
Whereas presumptive tests, such as reactive colour tests, may be used to generally indicate which type of substance is present (e.g., heroin or methamphetamines), chemists use gas chromatography/mass spectrometry to precisely determine the chemical composition of an unknown substance.
No one can exclude that a substance is present below the detection limit.
The pKa of tylosin is around 7.7 so that in manure with a basic pH the substance is present both as the positively charged cation and the uncharged molecule [23].
Instead you may send an inquiry for a certain product to the manufacturer or the distributor which he must answer within 45 days, in case such a substance is present in the product above the threshold of 0.1 weight %.
Because of their selectivity, these materials have found applications primarily in areas where a large interfering substance is present in the complex matrix [ 41].
Although the substance is presented in the whole proof of [4], Theorem], we should restate and prove it in our context for the readers' convenience.
A general model of an irreversible Ericsson refrigeration cycle employing paramagnetic materials as the working substance is presented, in which multi-irreversibilities such as finite-rate heat transfer, regenerative loss, heat leak, efficiency of regenerator and internal irreversibility resulting from magnetic working substances are taken into account.
The growth factor collection efficiency at 3 and 12 h for each activating substance is presented in Table 3. TGF-β1= transforming growth factor beta 1, PDGF-BB= platelet-derived growth factor type BB.
His appeal was heard in February, and during it, Cushing said, his representatives presented "significant medical and scientific data challenging the league's determination that the banned substance was present by ingestion and was not naturally occurring".
A major accident can happen whenever large amounts of a potentially toxic or reactive substance are present.
