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. 2015 Dec 15;2015:892486. doi: 10.1155/2015/892486

Table 6.

Stability results for GlcNAc and GalNAc standard solutions after ten days at 4, 20, and 40°C (n = 5 independent replicates).

Compound STa FCb Stability (n = 5, mean) (°C)
Day 1 Day 2 Day 3 Day 7 Day 10
ASc RSDd ASc RSDd ASc RSDd ASc RSDd ASc RSDd
GlcNAc 4 25 100.16 0.04 98.32 0.28 102.16 0.77 104.72 0.52 104.20 1.54
150 99.72 1.04 101.84 0.27 101.59 1.25 100.33 0.28 102.00 0.80
20 25 98.32 3.32 98.76 3.60 99.64 2.92 102.64 1.85 96.20 3.99
150 99.72 1.11 99.69 0.83 101.79 0.79 101.49 1.29 102.21 0.75
40 25 102.36 3.27 103.44 2.65 101.72 3.73 104.56 0.66 104.16 1.74
150 101.99 1.12 102.88 0.46 102.30 0.15 101.84 0.43 97.99 1.34

GalNAc 4 10 103.50 1.81 102.50 1.23 103.70 2.79 105.70 0.20 103.10 4.64
100 98.58 1.11 98.54 0.42 105.04 0.38 104.86 0.53 101.25 0.49
20 10 98.00 1.75 103.40 3.95 105.08 3.54 102.50 1.27 105.70 3.63
100 102.36 1.05 103.53 1.08 103.05 0.78 104.24 1.14 98.68 0.37
40 10 99.00 1.08 106.50 3.83 102.10 4.98 100.90 3.84 98.40 4.37
100 101.58 0.21 100.77 2.16 101.66 3.34 100.24 2.96 100.46 0.17

aST = storage temperature (°C).

bFC = fortified concentration (mg/L).

cAS = accuracy of stability test for GlcNAc and GalNAc (%).

dRSD = relative standard deviation (%).