保健食品中钾的检测方法验证报告
标液浓度 | 现配(Int) | 放置过夜 | 保存一周 | 保存两周 | RSD |
0.1mg/L | 23.6 | 23.6 | 23.6 | 24.9 | 2.7% |
0.2mg/L | 45.8 | 45.3 | 44.7 | 45.6 | 1.1% |
0.3mg/L | 65.9 | 66.1 | 64.7 | 64.7 | 1.2% |
0.4mg/L | 84.8 | 84.7 | 83.7 | 83.1 | 0.97% |
0.5mg/L | 102.6 | 103.9 | 103.0 | 101.6 | 0.93% |
标液浓度 | 现配(Int) | 放置过夜 | 保存一周 | 保存两周 | RSD |
0.1mg/L | 0.0496 | 0.0395 | 0.0345 | 0.0397 | 15.5% |
0.2mg/L | 0.0984 | 0.0790 | 0.0735 | 0.0855 | 12.7% |
0.3mg/L | 0.1470 | 0.1191 | 0.1118 | 0.1230 | 12.2% |
0.4mg/L | 0.1947 | 0.1570 | 0.1492 | 0.1633 | 12.0% |
0.5mg/L | 0.2457 | 0.1999 | 0.1874 | 0.2034 | 12.1% |
0.1258 | 0.1350 | 0.1273 | 0.1222 | 0.1221 | 0.1216 | RSD=4.1% |
次数 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | RSD |
测定低限 | 2.0 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 2.1 | 2.0 | 1.9 | 1.9 | 3.6% |
常见限量 | 43.8 | 44.1 | 44.2 | 44.0 | 43.7 | 43.8 | 43.8 | 43.9 | 44.0 | 43.9 | 0.35% |
一合适点 | 63.2 | 62.7 | 63.1 | 63.1 | 63.2 | 63.3 | 63.0 | 63.1 | 63.0 | 63.3 | 0.28% |
编号 | 校正后浓度 | 平均值 | 编号 | 校正后浓度 | 回收率% |
1# | <0.014 | <0.014 | 1# | 0.1483 | 98.9 |
2# | <0.014 | 2# | 0.1473 | 98.2 | |
3# | <0.014 | 3# | 0.1478 | 98.5 | |
4# | <0.014 | 4# | 0.1469 | 97.9 | |
5# | <0.014 | 5# | 0.1476 | 98.4 | |
6# | <0.014 | 6# | 0.1475 | 98.3 | |
7# | <0.014 | 7# | 0.1473 | 98.2 | |
8# | <0.014 | 8# | 0.1490 | 99.3 | |
9# | <0.014 | 9# | 0.1474 | 98.3 | |
10# | <0.014 | 10# | 0.1472 | 98.1 |
编号 | 校正后浓度 | 平均值 | 编号 | 校正后浓度 | 回收率% |
1# | 0.2022 | 0.20259 | 1# | 0.2459 | 86.6 |
2# | 0.2037 | 2# | 0.2453 | 85.4 | |
3# | 0.2038 | 3# | 0.2447 | 84.2 | |
4# | 0.2028 | 4# | 0.2458 | 86.4 | |
5# | 0.2017 | 5# | 0.2462 | 87.2 | |
6# | 0.2021 | 6# | 0.2451 | 85.5 | |
7# | 0.2018 | 7# | 0.2467 | 88.2 | |
8# | 0.2026 | 8# | 0.2460 | 86.8 | |
9# | 0.2028 | 9# | 0.2457 | 86.2 | |
10# | 0.2024 | 10# | 0.2443 | 83.4 |
编号 | 校正后浓度 | 平均值 | 编号 | 校正后浓度 | 回收率% |
1# | 0.3014 | 0.30089 | 1# | 0.4025 | 101.6 |
2# | 0.2988 | 2# | 0.4026 | 101.6 | |
3# | 0.3008 | 3# | 0.4026 | 101.7 | |
4# | 0.3010 | 4# | 0.4026 | 101.7 | |
5# | 0.3016 | 5# | 0.4034 | 102.5 | |
6# | 0.3019 | 6# | 0.4026 | 101.7 | |
7# | 0.3003 | 7# | 0.4025 | 101.6 | |
8# | 0.3010 | 8# | 0.4009 | 100.0 | |
9# | 0.3003 | 9# | 0.4007 | 99.8 | |
10# | 0.3018 | 10# | 0.4022 | 101.3 |
样品名 | 重量(g) | Int | 定容体积 | 稀释倍数 | 校正后浓度mg/l | 结果mg/kg |
保健食品半成品201611001 | 0.2997 | 66.9 | 10ml | 1000 | 0.2780 | 9275.9 |
保健食品半成品201611002 | 0.2999 | 69.3 | 10ml | 1000 | 0.2906 | 9689.9 |
保健食品半成品201611003 | 0.2965 | 69.4 | 10ml | 1000 | 0.2912 | 9821.2 |
保健食品成品161115001 | 0.2969 | 64.7 | 10ml | 1000 | 0.2667 | 8982.8 |
保健食品粉161115002 | 0.2981 | 45.8 | 10ml | 1000 | 0.1698 | 5696.1 |