Analytical methods that pertain to biotechnology (that is, to proteins, peptides, and other biomolecules) are more specifically referred to as bioanalytical methods.

The term "bioanalytical" was found in the following pages:

ISPTS2018: 15th International Symposium on Persistent Toxic Substances | EVISA's Agenda of Events
Identification and quantification of potential metabolites of Gd-based contrast agents | EVISA's News
Chromium speciation in biological tissues | EVISA's News
Journals database: Bioanalysis
Journals database: Journal of Analytical & Bioanalytical Techniques
RAFA2011: 5th International Symposium on Recent Advances in Food Analysis | EVISA's Agenda of Events
Journals database: Analytical Chemistry Letters
ESI-MS: The tool for the identification of chemical species | EVISA's News
Link database: Austria: University of Vienna: Institute of Inorganic Chemistry: Working group of B. Keppler
Company database: Analytik Jena GmbH
Books and Special Issues on Elemental Speciation (published since 2011) | EVISA's News
Books and Special Issues on Elemental Speciation (published between 2006 and 2010) | EVISA's News
Instrument database: Thermo Scientific - Velos Pro - Dual-Pressure Linear Ion Trap Mass Spectrometer
Journals database: Analytical Chemistry: An Indian Journal
Journals database: Journal of Chemical Metrology
The retention of gadolinium in the human body following the use of gadolinium-based MRI contrast agents: a call to action for analytical chemists | EVISA's News
4th International Conference and Exhibition on Analytical & Bioanalytical Techniques | EVISA's Agenda of Events
New light on human selenium metabolism | EVISA's News
Journals database: Analytical and Bioanalytical Chemistry
Journals database: Analytical Science Advances