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used to hold specimen or samples Sterile loops: used to inoculate test samples into culture media for bacterial or fungal cultures, antibiograms, etc.; not heated before use—these are disposable pre-sterilised Thermal cycler: used to amplify segments of DNA via the polymerase chain reaction (PCR) process. Tissue culture bottles
used as household water filters and as filters for large particles in the laboratories ••Diatomaceous earth filters like the Berkefeld filter-do- ••Unglazed porcelain filters like the Chamberland filter-do- •Disk filter or Seitz filter: previously used as bacteriological filters; presently obsolete •Sintered glass filter
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The sea temperature at the water sampling depth is recorded by means of a reversing thermometer fixed to the Nansen bottle. This is a mercury thermometer with a constriction in its capillary tube which, when the thermometer is inverted, causes the thread to break and trap the mercury, fixing the temperature reading. [ 1 ]
Amazon Prime Day is on July 16 and 17, but we’re already seeing Yeti, CamelBak, Polar, and Stanley water bottles on sale. Skip to main content. Sign in. Mail. 24/7 Help. For premium support ...
To filter the water, one puts contaminated water in the back of the bottle, then screws the lid on. The lid has a built in pump which is operated manually with a hand; the pumping action forces the contaminated water through the nano-filter and safe drinking water collects in another chamber in the bottle.