Result Interpretation

Why is Ammonium (NH4) reported instead of Ammonia (NH3)
Ammonia (NH3) is a gas, which is held in soil as ammonium.   Plant available ammonium nitrogen is the most correct expression, as ammonia has to be fixe...
Tue, 15 Jan, 2019 at 10:32 AM
What is the difference between Moisture and Saturation %?
Moisture content: Is the quantity of water contained in a material such as soil, rock, wood and other solid material.  Often referred to as water content. ...
Fri, 18 Jan, 2019 at 11:56 AM
Why are my bacteria results reported as "Too numerous to count (TNTC)"?
When determining a concentration of microorganisms within a test sample using a technique which involves counting individual bacterial  colonies or colony f...
Wed, 30 Jan, 2019 at 12:55 PM
What is the impact of analysing Nitrate + Nitrite past the recommended hold time?
Nitrite (NO2) is chemically less stable than nitrate (NO3). Nitrite will oxidize and be converted to nitrate resulting in an underestimation of nitrite and a...
Wed, 30 Jan, 2019 at 9:58 AM
How do I interpret these results: Is my sample considered a hazardous waste?
A number of factors are used to identify a sample as a hazardous waste and unfortunately it is not an interpretation we are able to make for you, as there a...
Tue, 5 Mar, 2019 at 11:13 AM
What is the impact of surrogate recovery?
Surrogates are compounds added to the sample either at the initiation of the sample extraction process (Extraction Surrogate), or at a  step immediately pri...
Wed, 30 Jan, 2019 at 1:29 PM
Comments on reports. Do I need to read them and what are they for?
Comments on Certificates of Analysis (data reports) are meant to acknowledge situations when sample data falls outside recommended control limits or when th...
Tue, 12 Feb, 2019 at 11:48 AM
What do the comments EMPC, NDR, DPE, EMCL on my Dioxin and Furan report mean?
An EMPC is defined in section 11.9.5.2 of Method 8290 as the following;   11.9.5.2 Estimated Maximum Possible Concentration -- An estimated maximum possib...
Wed, 20 Feb, 2019 at 9:42 AM
What does "sample did not reach baseline" mean?
In many chemical analyses, specifically where Gas Chromatography (GC) is utilised for chemical separation, your data can be represented and interpreted in t...
Tue, 26 Mar, 2019 at 10:17 AM