picogram

the sample contained only a few picograms of the substance.

researchers can measure changes in picograms with high precision.

one picogram is one trillionth of a gram.

the device can detect levels as low as a single picogram.

environmental tests often require measuring substances in picograms.

picograms are commonly used in scientific research for trace analysis.

she found traces of the drug in the blood at picogram levels.

understanding picogram measurements is crucial for chemists.

some allergens can be detected in the air at picogram concentrations.

the lab reported a contamination of picograms in the food sample.