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Colorimeters and Photometers are used to analyze samples of water by adding a chemical reagent that reacts with the substance being analyzed and changes its color. The colorimeter then monitors the light transmission through the water samples to determine the presence and quantity of the substance of interest.
Test strips are either dipped or swirled in a water sample. The resulting color reaction is compared to a color chart provided.
The chief advantage of colorimetric analysis is that it provides a simple means of determining minute quantities of substances.
Hach DR 900
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Thermo Scientific Orion
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LaMotte SMART3 Colorimeter®![]() The compact SMART3 Colorimeter® is ideal for water analysis in the field or in the lab. Easy to use software allows the analyst to choose a test factor from over 75 preprogrammed calibrations for LaMotte reagent systems. The reacted sample is always scanned at the optimum wavelength which is automatically selected from the multiple LED optical system and the test result is presented on the large, backlit display. Call 1.800.833.7958 LaMotte SMART3 Specifications |
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LaMotte ColorQ DW Photometer
ColorQ DW Photometer kit (Code 2059) is the ultimate portable on-site, hand-held photometer for testing drinking water. Call 1.800.833.7958 |
LaMotte Insta-Test® Test Strips
LaMotte offers a convenient, economical way to perform spot checks for several water quality factors. LaMotte test strips are a great way to monitor water without having to use reagents or field kits. Call 1.800.833.7958 |
YSI 9300 & 9500 Photometers
YSI's new line of photometers includes the Model 9300 and 9500. Eliminate sample preservation by taking your portable, waterproof instruments to the field to perform the analysis on-site. All reagents are safe and easy to use. Selecting the desired test has never been easier. Simply navigate among the list of available tests on the screen of the instruments to choose your test and say "OK". The instrument will then walk you through the steps to complete the test. Simple. Convenient. Accurate. Call 1.800.833.7958 YSI 9300 & 9500 Photometers Specifications |