SPSFAM ERP

Table 5. Recovery of inulin (Raftiline) and levan (Timothy grass) spiked into GoCat dry cat food and into Timothy grass. Recovery of spike, % Sample Inulin Levan Recovery parameter for AOAC, % GoCat dry cat food 99.0 (27 mg added) 99.6 (26 mg added) 95-105 % 97.8 (27 mg added) 95.2 (26 mg added) 95-105 % Timothy grass 95.0 (22 mg added) 102.8 (21 mg added) 95-105 % 99.4 (22 mg added) 97.2 (21 mg added) 95-105 % Timothy grass 99.4 (11 mg added) 101.5 (11 mg added) 95-105 % 103.4 (11 mg added) 95.1 (11 mg added) 95-105 % 6.2.5 Limit of Detection (LOD) and Limit of Quantification (LOQ) LOD (the lowest level at which detection of the analyte becomes problematic) and LOQ (the lowest level at which the performance of the assay is acceptably repeatable) of the Fructan Assay Kit (K-FRUC) method were calculated by performing replicate assays (n = 16) on a Purina GoCat dry cat food sample with a relatively low content of fructan (0.98% w/w).

LOD was calculated to be 0.036 % (w/w) : Where: LOD = 3 x s’ 0 s’ 0 LOQ was calculated as 0.119 % (w/w) : Where: LOQ = k Q x s’ 0 k Q x s’ 0 s’ 0

is the standard deviation of replicate measurements.

is the standard deviation of replicate measurements. The IUPAC default value for k Q is 10.

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