This is based on the selectivity and high affinity of Ni-NTA(nickel nitriloacetic acid) reins for proteins containing his tag
Drug Deliv 26, 216225.CrossRefGoogle ScholarPubMed AlGhamdi, KM, Kumar, A, AL-Rikabi, AC, et al
of Diabetes, University of Pisa, Pisa, Italy, 2 Endocrinology and Metabolism, Oxford Centre for Diabetes, England, UK, 3 Novartis Pharma AG, Basel, Switzerland, 4 Childrens Hospital, Helsinki University and Helsinki University Hospital, Helsinki, Finland, 5 Research Program for Clinical and Molecular Metabolism, University of Helsinki, Helsinki, Finland
blood, urine) are derived by statistical methods from surveys and repeated measures of chemicals, and further used by the German HBM Commission to define concentrations (HBM-I and HBM-II) with no increased risk for adverse health effects or with the need for intervention to reduce an exposure (Umwelt Bundesamt, 2023)
What if I Suspect Contamination or Degradation
A properly reconstituted HGH solution is clear, colorless, and particle-free