สิ่งแวดล้อม มลภาวะ ของเสีย
เอกสารมาตรฐาน
สหรัฐอเมริกา
APHA
SMWW 9216
Direct Total Microbial Count
2023
2
Standard methods for the examination of water and wastewater (543.3 APHA 24th ed. Ref. Treatises&monographs FL2)
Staining using DNA-specific fluorochromes, such as N,N, N′,N′-tetramethylacridine-3,6-diamine (acridine orange) or 4′,6- diamidino-2-phenylindole (DAPI), followed by epifluorescence microscopy, has been used to count total microbial cells in aquatic samples. Other fluorochromes, such as 5-cyano-2,3-ditolyl tetrazolium (CTC) or SYTO 9/propidium iodide, can be used for viable or total bacteria cell counts...