Control lab definition
Laboratory Quality Control MARLAP 182 JULY 2004 This chapter addresses the control of the analytical process in the laboratory, as distinct from meeting the typical analytical needs of a specific project. Quality control provides quantitative estimates of analysis and measurement controls that can be used to determine compliance with project objectives.Quality control (QC) is a procedure or set of procedures intended to ensure that a manufactured product or performed service adheres to a defined set of quality criteria or control lab definition
In biology experiments, a control group is a group of subjects that are not given the treatment being tested in order to serve as a benchmark for the tested group. The presence of a control group helps scientists rule out alternate causes for any observed results.
Control lab definition free
A positive control is a part of good experimental design. A positive control receives a treatment with a known response, so that this positive response can be compared to the unknown response of
A controlled variable is one which the researcher holds constant (controls) during an experiment. It is also known as a constant variable or simply as a control . The control variable is not part of an experiment (not the independent or dependent variable ), but it
A quality control product is a patientlike material ideally made from human serum, urine or spinal fluid. 3 A control product can be a liquid or freezedried (lyophilized) material and is composed of one or more constituents (analytes) of known concentration. Control products should be tested in the same manner as patient samples.
How can the answer be improved?
In scientific experiments, a scientific control is one in which the subject or a group would not be tested for the dependent variable(s). The inclusion of a control in an experiment is crucial for generating conclusions from the empirical data.
In laboratory operations, control samples are analyzed during each analytical run to evaluate method performance, therefore the analytical run defines the interval (period of time or number of specimens) between evaluations of control results.
See Concurrent nonrandomized control, Control population, Control subject, Historical control Epidemiology In a casecontrol study, a comparison group of persons without disease Lab medicine A specimen with known or standardized values for an analyte, that is processed in tandem with an unknown specimen; the 'control' specimen is either known to have the substance being analyzed, ie
Rating: 4.36 / Views: 572