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Table 2 Effect of various biocide treatments on the IMS method test signal

From: Comparing methods of determining Legionella spp. in complex water matrices

Biocide

Contact time (min)

Reduction in signal for IMS method (%)

Hyplochlorite, 3 ppm

60

99

DBNPA 20%

60

90

Mefacide, 100 ppm

60

5