{"tema_id":"1270","string":"noise           #01495","created":"2022-12-19 09:13:36","code":null,"notes":[{"@type":"Cataloger's note","@lang":"en-EN","@value":"reference: R113:1994 3.8 "},{"@type":"Cataloger's note","@lang":"en-EN","@value":"ID: 01495 "},{"@type":"Definition note","@lang":"en-EN","@value":"a measure of the variation in the detector\u2019s output signal when a sample component is not being detected. This can be classified into two types: \uf0b7   Short-term noise includes all observable random variations of the signal from the detector or other components having a frequency of about one or more cycles per minute. \uf0b7   Drift is the average slope of the baseline signal measured over an extended time period, for example, one-half hour "}]}