Ammonium Nitrogen: Means ammonia nitrogen plus
Analytical Run: A group of samples processed
together through each step of an analytical procedure.
Analytical Standard: A series of chemical standards
of the target analytes, used to set the relationship between instrument
response and concentration
Blank, Method Blank: Pure Water or other type
of blank (i.e., acid or solvent) used to monitor for contaminated
reagents, glassware and method processes.
Certified reference material (CRM) - reference
material, accompanied by documentation issued by an authoritative
body and providing one or more specified property values with
associated uncertainties and traceability, using valid procedures.
Composite Sample: A sample that is made up of
a number of sub-samples that have been thoroughly mixed together.
Duplicate Sample: One of two samples collected
at a sampling point at the same time in a manner that minimizes
differences between the samples.
Geo-Reference: A specific set of coordinates
within a numeric system of grid references (e.g., latitude/longitude
or UTM (Universal Transverse Mercator)) used to precisely identify
a geographic location.
Global Positioning System: Method of determining
geo-reference using a GPS receiver.
Grab Sample: A single sample taken directly
from the material being sampled, sub sample or a portion of a
Internal Standard: A compound, representative
of the compound(s) of interest and not expected to be found in
the matrix, spiked into every sample extract and solution analyzed.
It monitors losses/gains due to the analytical procedure. Data
may or may not be corrected based on the calculated recovery.
Matrix: Any type of material, e.g., soil, manure,
Matrix Check Material: Matrix check materials
are, typically, natural materials subjected to method processes
in order to monitor method recovery. They are often in-house sample
composites that have an established value and characteristics
NMAN: A computer program of that name prepared
by OMAFRA for the purpose of preparing nutrient management plans,
as well as the workbook that can be used to prepare plans manually.
Nitrate Nitrogen: Means nitrate nitrogen plus
Nutrient: means fertilizers, organic materials,
biosolids, compost, manure, septage, pulp and paper sludge and
other material applied to land for the purpose of improving the
growing of agricultural crops or for the purpose of improving
the growing of agricultural crops or for the purpose of a prescribed
use, but does not include any material that the regulations specify
does not come within the definition of "nutrient".
Nutrient Management Plan: A plan for the application
of materials containing nutrients to land in such a way that agronomic
requirements of crops are met, and environmental impacts are minimized.
Nutrient Unit: The amount of nutrients that
give the fertilizer replacement value of the lower of 43 kilograms
of nitrogen or 55 kilograms of phosphate as nutrient as established
by reference to the Nutrient Management Protocol.
Quality Management System: A set of interrelated
elements (e.g., policies and objectives) that direct and control
the way a facility operates with regard to quality.
Reference material (RM) - material, sufficiently
homogeneous and stable with reference to specified properties,
which has been established to be fit for its intended use in measurement
or in examination of nominal properties
Replicate Analyses: Natural samples may be split
in the laboratory and analyzed together in the same run. Replicates
are taken through the entire method process. This data can be
used to assess the within-run precision of the analysis or sample
Replicate Sample: An additional or second aliquot
(portion) of a randomly selected sample in the analytical run.
Representative Sample: A sample of material
that has been taken so that it has essentially the same composition
and characteristics of the source material.
Spiked Samples: Analyte(s) of interest is spiked
into the sample matrix in order to monitor recovery from the sample
matrix using the method or parts of the method.
Spiked Water/Solvent: Analyte(s) of interest
is spiked into reagent water/solvent to monitor recovery because
of changes in the method or parts of the method.
Standard Additions: The addition of known quantities
of the analyte of interest to one or more split portions of a
single sample can be used to determine the presence and possible
effect of interference by various matrix constituents on the analytical
Sub-sample: A single sample taken directly from
the material being sampled or a portion of a composite sample.