The phrase "a single gram of" is correct and usable in written English.
It can be used when specifying a precise quantity of a substance, often in scientific or culinary contexts.
Example: "The recipe calls for a single gram of salt to enhance the flavor of the dish."
Alternatives: "one gram of" or "a gram of".
A single gram of the purified toxin, widely dispersed and inhaled, could kill a million people.
A single gram of DNA holds about as much information as one trillion compact discs.
A major hurdle is that 10,000 shucked and ground-up mussels are needed to distill a single gram of the protein.
Until these were removed, Cuba vowed not to buy "a single gram" of American food.Then came the hurricane.
Around 60g of coffee to a litre of water is recommended; in slightly more useful terms, that works out as a single gram of coffee for every 16ml of water, or around 7g for a single espresso shot.
If that cell is a neuron, the potential insights into the human brain are as vast as the 215 petabytes of data researchers have managed to cram into a single gram of DNA.
The lethal dose of crystalline toxin A is estimated at 1 µg/kg when introduced orally and the dissemination of a single gram could kill more than 1 million people [11].
This study included a small sample of women from a single gram panchayat in Kerala, which did not provide an opportunity to glean a portrait of widows across Kerala, given the internal diversity of the state.
Our genetic code packs billions of gigabytes into a single gram.
All of the wind turbines, rooftop solar panels, hydroelectric and biogas plants have not reduced CO2 emissions in Europe by a single gram.
Just have to continue ignoring the fact that your single gram of pub grub only made it across the Atlantic as part of a huge batch shipment of cocaine, produced by tearing down the rainforest that countless species, including mankind, needs desperately to survive.
