Importance of Cation Exchange Cation exchange at negative sites is major retention mechanism for heavy metals, e.g. Cd, Pb and Zn. Measurement of CEC
{"Image DocumentName": "Importance of Cation Exchange", "Image ImageDescription": "Cation exchange at negative sites is major retention mechanism for heavy metals, e.g. Cd, Pb and Zn. Measurement of CEC. The CEC of soil is usually measured by saturating the soil with an index cation such as Na+, removal of the excess salts of the index cation with a dilute solution , and then displacing the Na+ with another cation . The amount of Na+ displaced is then measured and the CEC is calculated.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}