The cake on analysis was found to contain trace of toxin.

经分析发现蛋糕里含有微量毒素。

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When the food is analysed it is found to contain trace of bacteria.

经化验分析，该食物含有微量细菌。

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Now, the company admits that the epoxy liners in its bottles used to contain trace amounts of BPA.

现在，公司承认在它的这个水壶里面的环氧衬里里面曾经含有微量的BPA。

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Both dietary supplements contain 105 micrograms of the trace mineral selenium per daily dose, or about twice the Recommended Daily Allowance, which is 55 micrograms a day for adults, according to the center.

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Donaldson said scientists are yet to definitively trace the origins of the virus strain that Britain is currently battling to contain and eradicate.

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LighterLife argues that its foodpacks comply with the United Kingdom's National Institute for Clinical Excellence and contain at least 100 percent of the recommended daily allowance of vitamins, minerals and trace elements.

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