Definitions and Commonly Used Terms

What is a chain of custody?
A chain of custody is provided with your sampling kit.   It is the document that connects the samples taken at your location to them being submitted and...
Tue, 5 Mar, 2019 at 9:39 AM
What is accreditation?
Laboratory accreditation is an assessment of facilities and operating procedures by a recognized accreditation bodies.  All aspects of laboratory activities...
Mon, 6 May, 2019 at 11:51 AM
What is QA/QC?
QA/QC is the combination of Quality Assurance (QA) - the processes and protocols to ensure the quality of results, and Quality Control (QC) - the particular...
Mon, 17 Dec, 2018 at 9:11 AM
What is drinking water licensing?
In some provinces in Canada, a laboratory providing analysis of water from drinking water sources is required to obtain and maintain a valid and up to date ...
Tue, 6 Nov, 2018 at 1:21 PM
Matrix Interference
Matrix interference or matrix effect, typically refers to the components of a particular matrix (such as soil, water or air etc.) having an an effect on the...
Fri, 11 Jan, 2019 at 2:21 PM
What is a sample matrix?
When related to chemical analysis, the "matrix" refers to all the other components of a particular sample, other than the analyte or compound you ...
Fri, 11 Jan, 2019 at 2:21 PM
What is Oncorhyncus mykiss?
Oncorhyncus mykiss, otherwise known as Rainbow Trout, is used in a variety of Ecotoxicology analyses performed at Bureau Veritas. Please see the followi...
Wed, 11 May, 2022 at 12:16 PM
What is a Job confirmation report?
The Job Confirmation Report is documentation that we have received your samples, confirmed and itemized all samples and containers and assigned the requeste...
Wed, 16 Jan, 2019 at 12:13 PM
Method Detection Limit - Definition.
Method Detection Limit or "MDL". It is the smallest analyte concentration that can be demonstrated to be different from zero or a blank concen...
Fri, 12 Nov, 2021 at 11:30 AM
Reporting Detection Limit - Definition
Reporting Detection Limit or "RDL" It is the lowest analyte concentration that can be reported with confidence for a specific method. (i.e. wi...
Wed, 27 Oct, 2021 at 12:45 PM