What does peptide “gross weight” mean? How does it relate to peptide content and peptide purity?

Peptide "gross weight" refers to the actual weighed weight of the peptide. The gross weight includes the correct peptide, residual water, as well as peptide and non-peptide impurities that may be present and contribute to the weight. "Peptide content" is more specific and refers to the amount of correct peptide relative to everything else that contributes to the gross weight of the sample, such as residual water, peptide impurities, and non-peptide impurities.

"Peptide content" is not obtained from weighing the sample. Instead, it is estimated from the combined data from amino acid analysis and from peptide purity. Peptide content is affected by the amount of water and salts present in the peptide sample.

"Peptide purity" refers to the amount of correct peptide relative to all peptide and non-peptide impurities (except water and salts) that are detected by the assay method. Normally, peptide purity is determined by analytical RP-HPLC and detected by the absorbance at 215 nm. Peptide ... more.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.