Elements of Photometric Assaying

摘要: Publisher Summary This chapter provides an overview of the elements photometric assaying. The method assay is very simple in principle: test substance added to a suspension organism nutrient medium, mixture incubated, and response measured. may be any that will give uniform suspension. turbidity measured after appropriate incubation. following are physical factors influencing turbidity: (1) concentration cells, (2) size (3) opacity cells. microbiological assaying included under general headings inoculum, media, incubation, bacteria substance. An understanding turbidimetric methods requires consideration influences upon calibration photometers used measure turbidity. also discusses merits commonly expressions dosage–response curves.