I'm almost sure it can carry 1.6 tonnes but check your weight plate in the foot well.
The a280 protein concentration in the sample is 2.5 mg/mL.
When a protein in solution is analyzed using UV-visible, a peak at 280 nm is commonly observed. This peak is due to the effect of aromatic rings in the polypeptide chain (from amino acids tryptophan and tyrosine).
The expected range of A260/A280 ratio for pure DNA isolates is typically around 1.8 to 2.0. This range indicates that the DNA sample is relatively pure and free of contaminants such as proteins or RNA. A ratio below 1.8 may suggest contamination with protein, while a ratio above 2.0 may suggest contamination with RNA.