Antibiotics are now commonly utilised in food-producing animals to stimulate growth and preserve optimal health. The antibiotic azithromycin monohydrate belongs to the macrolide antibiotic class. As an efficient antibiotic, it is used to treat sexually transmitted illnesses, upper and lower respiratory tract infections, and skin structure infections.
Methods: A method for determining azithromycin monohydrate residue in bodily
fluids using a gas chromatographic–mass spectrometric (GC–MS) method is
described. This approach identifies residual azithromycin (AZM) in biological
fluids using single-ion monitoring (SIM). If the residual level in a sample is
greater than 5 g/mL, a full-scan electron impact (EI) mass spectrum can be used
to corroborate the results. Before partitioning between chloroform and
phosphate buffer solution, AZM is extracted from a sample with chloroform and
cleaned up with n-hexane washing. The cleaned extract is acetylated in an
acetic anhydride–pyridine combination at room temperature (1:2).
Results: The reaction mixture was put into the GC–MS instrument, and SIM at m/z
200 was used to detect it. 2 g/mL is the detection limit.
Conclusions: This proposed method has the potential to be used in both forensic
and toxicological laboratories to analyse drugs.
Author(s) Details:
Subbiah Thangadurai,
Post Graduate Studies and Research Department of Chemistry, Raja
Doraisingam Government Arts College, Government of Tamil Nadu, 630 561
Sivagangai, India.
Please see the link here: https://stm.bookpi.org/NICB-V7/article/view/5978
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