Table 2.
Batch to batch analysis of the NF
|
Parameter (unit) |
Batch number | Method of analysis | ||||
|---|---|---|---|---|---|---|
|
#6 |
#7 |
#8 |
#9 |
#10 |
||
|
Assay Zinc l‐carnosine (%) |
101.0 | 101.1 | 100.3 | 100.8 | 101.3 | HPLC‐UV |
| Moisture (%) | 1.6 | 1.5 | 1.5 | 1.3 | 1.7 | Gravimetry |
| Water activity | 0.26 | 0.24 | 0.28 | 0.23 | 0.44 | Hygrometry |
| Lead (µg/g) | 1.1 | 1.1 | 1.1 | 1.3 | 0.2 |
ICP‐MS |
|
Arsenic (µg/g) |
< 0.15 | < 0.15 | < 0.15 | < 0.15 | < 0.15 | |
|
Cadmium (µg/g) |
0.1 | 0.1 | 0.1 | 0.1 | < 0.05 | |
|
Mercury (µg/g) |
< 0.3 | < 0.3 | < 0.3 | < 0.3 | < 0.3 | |
HPLC‐UV: High‐Performance Liquid Chromatography‐Ultraviolet; ICP‐MS: inductively coupled plasma‐mass spectrometry.