Methods



One of the aims of a professional laboratory is the ability to consistently arrive at assay results for the same sample that, upon further tests, match up within close statistical limits. This is referred to reproducibility. Too much variation can show unwanted variables in the assay process, such as equipment malfunctions or a lack of a homogeneous sample.

One of the ways to increase reproducibility is to use the same methods that have been time-proven by many laboratories before us. As an example, a sample may be sent in to us with a request to test it for moisture. Although we employ at least six different methods to test moisture, there is usually one method that is considered most appropriate by either the industry or the customer for that particular type of sample.

In order to continue to be a certified lab (AACC or NFTA for instance), we must follow industry standard methods. Below you will find the methods that we are currently using in the testing of our most common assays.

ANALYSISMETHOD
Crude ProteinAOAC 990.03
Fat 
     ANKOMAOCS Am5-04
     EtherAOAC 920.39
     NH4 HydrolysisAOAC 989.05
     Acid HydrolysisAOAC 954.02
     FFAAOAC 940.28
     PeroxideAOAC 965.33
Fiber 
     CrudeAOAC 962.09
     ADFAOAC 973.18
     NDFAOAC 2002.04
AshAOAC 942.05
Acid Insoluable AshAOAC 920.08
Moisture 
     Standard 135° CAOAC 930.15
     VacuumAOAC 934.06
     Vacuum nutsAOAC 925.40
     TolueneAOAC 925.04
     MeatsAOAC 950.46
     YeastAOAC 960.18
     FishAOAC 935.29
Water ActivityDecagon
pHIn House
Minerals 
     Ca (precipitated)AOAC 927.02
     Ca (non-precip)AOAC 968.08
     PAOAC 965.17
     SeHydride
     SAOAC 923.01
     Other mineralsAOAC 968.08
NaCl (total Chloride as NaCl)AOAC 969.10
Organic MatterAOAC 967.04