Madeline Cooke

Madeline Cooke

Scientist

Articles by Madeline Cooke

  • Easy Laboratory Scale

    Friday, May 13, 2022
    This balance is easy to use and maintain, and has almost no issues. It is pretty sensitive, and it provides consistent results. Maintenance includes making sure the balance is level, and verifying performance using calibrated weights. It has held up well after years of use. I would recommend this ... read more

  • IC with Multiple Applications

    Thursday, May 12, 2022
    If you are looking for an IC that can quantify more than just the basic anions, this is the one you need. It has so many capabilities and add-ons; this is a great instrument for research and development laboratories. Metrohm has great product specialists and chemists who can help with method ... read more

  • Simple Ion Chromatography

    Wednesday, May 11, 2022
    The ECO Ion Chromatography instrument is small, compact, simple, and straightforward. It is very easy to use for routine analysis of anions in water. It has a fast runtime, and has relatively low maintenance and consumables cost. It is a good base model for anion analysis by IC. read more

  • Easy Way to Quantify Free Chlorine

    Thursday, April 28, 2022
    This meter is very small, portable, and accurate. It is the easiest way to get a precise measurement of free chlorine in water samples. I even found that this meter works with high TDS samples, which was a nice surprise. The calibration is very straightforward, and this is how I plan to quantify ... read more

  • Simple Free Chlorine Determination

    Tuesday, April 26, 2022
    This test kit is very easy to use, but not the most precise. It works well in DI and RO water, but does not give clear results in saltwater or waters with additional matrix interferences. It can be hard to distinguish the concentration because it is entirely based upon color, and the color changes ... read more

  • Inexpensive, Low Quality Magnetic Stirrer

    Monday, April 25, 2022
    This is a very simple, small stir plate. It is very easy to set up (just plug in and go), and it is surprisingly powerful given its size. The downside is that it does not last- after about a year of use, it no longer works at all. Not sure why it does not work anymore, as I have tried changing power... read more

  • Long Lasting Stir and Hot Plate

    Friday, April 22, 2022
    This magnetic stirrer and hot plate has lasted over 4 years. It is easy to use, has simple controls, and does not require a lot of power. While it is more expensive than some of the magnetic stirrers out there, the quality makes it well worth the price. read more

  • Plentiful Capabilities but Not Fast

    Thursday, April 21, 2022
    The Sciex Triple Quad 3500 System is capable of analyzing 100s of chemical compounds. This instrument is especially suitable for detection of pesticides in low (ppb) levels in food/cannabis samples. The software is not the most intuitive, but the capabilities are plentiful. Customer support is not ... read more

  • Reliable DO, Conductivity Meter

    Wednesday, April 20, 2022
    This is a very simple and reliable meter that gives a lot of information about water quality. It quickly reads a stable reading, requires little to no maintenance, and stores values for easy data acquisition. This device lasts a long time and continues to provide valuable data over many years of use... read more

  • Straightforward, Easy to Use ICP-OES

    Tuesday, April 19, 2022
    The Agilent ICP-OES 5800 is incredibly easy to use, and has very intuitive software. The daily and monthly maintenance are very streamlined, and much simpler than PerkinElmer's counterpart. Agilent offers great application support. The instrument itself is relatively compact. This ICP-OES does not ... read more
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