For Science… From Science®

Frequently Asked Questions

Frequently Asked Questions



  • What do I do with the ends of my peptides - keep them free or block them?
  • If my peptide is 95% pure, what is in the other 5%?
  • How do I reconstitute my peptide?
  • What is PepTrend™?
  • What is net peptide content and what does it mean?
  • What purity do I need for my experiments?
  • How do I store my peptides?
  • What is the maximum peptide length you can produce?
  • Why does my KLH/peptide solution appear cloudy?


  • How can New England Peptide help me with my HTS?
  • Which array analysis tier is right for me?


  • Which antibody package is right for me?
  • What species should I choose for my antibody production?
  • Why do I need two rabbits?
  • Why should I use a peptide for antibody production?
  • How do you choose the best antigen?
  • Can I inject more than one peptide into the same set of animals?
  • What chemistry do you typically use for carrier protein conjugation?
  • What do I do with my pre-immune serum?
  • How do you test for reactivity?
  • How much antibody should I expect to receive?
  • How do I store my antisera / antibody?
  • How long can I expect my rabbits to produce good antibody?
  • Will I be able to use my antibody in multiple applications?
  • What are your accreditations?


  • What should I use as an antigen?
  • If I send you material, how much do you need and how should I send it?
  • What strain(s) of mice should I use?
  • What screening method does NEP use?
  • What will I receive at the end of the package?
  • What is NEP's policy of ownership and confidentiality?


"I had been working with a different peptide company for custom peptides…but ran into a spate of problems – lost orders, huge delays, and bad technical help. So we switched to NEP. After that, everything has gone swimmingly. Pricing, honestly, is a bit more than I was paying before, but as with many other things in life, you get what you pay for!"
Kirk F. PhD