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定量盘® 检测菌落总数用于定量检测 100 mL 水中的异养微生物数量。
该检测产品采用 IDEXX 专利的复合酶底物技术™，通过定性检测相关微生物中已知存在的主要酶，来检测可能存在的异养微生物。 该检测产品采用的复合酶底物可在被介水传播的细菌分解代谢时产生蓝色荧光。
将样品／试剂混合液加入定量盘®，培养后检查荧光孔。 荧光孔数量相当于原始样品中的总异养微生物的最大可能数 (MPN)。
定量盘检测菌落总数可在 44–72 小时培养后检测微生物 1 cfu/100 mL。
The HPC for Quanti-Tray® Test is designed specifically for bottled-water samples. Bottled-water samples are defined as samples taken from any point in the bottled-water manufacturing process (from the original water source, to transportation vehicles, to the manufacturing line, to the finished product).
Water samples are incubated at 36ºC (±2ºC) for 44 hours, and results are valid up to 72 hours.
The HPC for Quanti-Tray Test detects heterotrophic organisms at 1 cfu/100 mL.
There is no comparator for the HPC for Quanti-Tray Test. Use a negative control for comparison when you interpret results.
Yes, if the results are positive. An inoculated HPC for Quanti-Tray Test sample that is positive before 44 hours is a confirmed positive test. However, for an accurate quantitative determination of heterotrophic count in a sample, the results should be read between 44 and 72 hours of incubation.
Yes, if the results are negative. If an inoculated HPC for Quanti-Tray Test sample is inadvertently incubated over 72 hours, lack of fluorescence is a valid negative test. However, a fluorescent read after the 72 hours is not valid and should be repeated or verified.
Yes, both the Quanti-Tray® and Quanti-Tray®/2000 can be used with the HPC for Quanti-Tray Test in the 100-mL format.
2–25ºC away from light.
The HPC for Quanti-Tray Test reagent powder should be pink in color and of a free-flowing, granular consistency. Direct any concerns about the color or integrity of the powder to IDEXX Technical Service.
Check with your local, state and/or federal authorities for proper disposal of bacteriological biohazard materials at your facility.
HPC for Quanti-Tray should not be used with carbonated water samples.