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© 《China Plastics》
China Plastics ›› 2025, Vol. 39 ›› Issue (1): 80-84.DOI: 10.19491/j.issn.1001-9278.2025.01.013
• Standard and Test • Previous Articles Next Articles
YE Linquan(), QIAN Taotao, LI Rongbing, ZENG Le
Received:
2024-04-12
Online:
2025-01-26
Published:
2025-02-14
CLC Number:
YE Linquan, QIAN Taotao, LI Rongbing, ZENG Le. Study on simultaneous determination of IPA, EG, and DEG contents in drinking water bottles by gas chromatography[J]. China Plastics, 2025, 39(1): 80-84.
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URL: https://www.plaschina.com.cn/EN/10.19491/j.issn.1001-9278.2025.01.013
称样量/g | 1 g样品相对峰面积(pA*min) | ||
---|---|---|---|
IPA | EG | DEG | |
0.1 | 65.30 | 625.46 | 40.52 |
0.2 | 66.11 | 622.64 | 40.49 |
0.5 | 67.43 | 627.57 | 41.83 |
1.0 | 66.92 | 627.30 | 41.94 |
2.0 | 55.70 | 557.19 | 34.66 |
称样量/g | 1 g样品相对峰面积(pA*min) | ||
---|---|---|---|
IPA | EG | DEG | |
0.1 | 65.30 | 625.46 | 40.52 |
0.2 | 66.11 | 622.64 | 40.49 |
0.5 | 67.43 | 627.57 | 41.83 |
1.0 | 66.92 | 627.30 | 41.94 |
2.0 | 55.70 | 557.19 | 34.66 |
温度/℃ | 1 g样品相对峰面积(pA*min) | ||
---|---|---|---|
IPA | EG | DEG | |
230 | 64.28 | 607.65 | 39.56 |
210 | 64.11 | 612.53 | 39.62 |
190 | 65.38 | 628.07 | 41.12 |
170 | 64.12 | 610.29 | 39.79 |
150 | 35.55 | 388.90 | 24.10 |
温度/℃ | 1 g样品相对峰面积(pA*min) | ||
---|---|---|---|
IPA | EG | DEG | |
230 | 64.28 | 607.65 | 39.56 |
210 | 64.11 | 612.53 | 39.62 |
190 | 65.38 | 628.07 | 41.12 |
170 | 64.12 | 610.29 | 39.79 |
150 | 35.55 | 388.90 | 24.10 |
时间/h | 1 g样品相对峰面积(pA*min) | ||
---|---|---|---|
IPA | EG | DEG | |
0.5 | 35.17 | 435.80 | 25.64 |
1.0 | 65.37 | 632.54 | 41.78 |
1.5 | 66.29 | 634.91 | 42.49 |
2.0 | 65.78 | 623.25 | 41.25 |
2.5 | 65.89 | 616.81 | 41.03 |
时间/h | 1 g样品相对峰面积(pA*min) | ||
---|---|---|---|
IPA | EG | DEG | |
0.5 | 35.17 | 435.80 | 25.64 |
1.0 | 65.37 | 632.54 | 41.78 |
1.5 | 66.29 | 634.91 | 42.49 |
2.0 | 65.78 | 623.25 | 41.25 |
2.5 | 65.89 | 616.81 | 41.03 |
物质 | 模拟回归方程 | R2 | 检出限(3S/N) | 定量限(10S/N) |
---|---|---|---|---|
IPA | y=160.36x-2.775 8 | 0.999 9 | 0.002 42 g/L(0.012 1 %) | 0.008 07 g/L(0.040 3 %) |
EG | y=83.315x-5.118 3 | 0.999 9 | 0.006 11 g/L(0.030 6 %) | 0.020 4 g/L(0.102 %) |
DEG | y=87.182x-1.104 5 | 0.999 7 | 0.008 04 g/L(0.040 2 %) | 0.026 8 g/L(0.134 %) |
物质 | 模拟回归方程 | R2 | 检出限(3S/N) | 定量限(10S/N) |
---|---|---|---|---|
IPA | y=160.36x-2.775 8 | 0.999 9 | 0.002 42 g/L(0.012 1 %) | 0.008 07 g/L(0.040 3 %) |
EG | y=83.315x-5.118 3 | 0.999 9 | 0.006 11 g/L(0.030 6 %) | 0.020 4 g/L(0.102 %) |
DEG | y=87.182x-1.104 5 | 0.999 7 | 0.008 04 g/L(0.040 2 %) | 0.026 8 g/L(0.134 %) |
名称 | 人员A | 人员B | ||||
---|---|---|---|---|---|---|
EG | DEG | IPA | EG | DEG | IPA | |
1 | 31.88 % | 1.40 % | 2.30 % | 31.74 % | 1.36 % | 2.28 % |
2 | 31.78 % | 1.33 % | 2.35 % | 31.88 % | 1.39 % | 2.34 % |
3 | 31.83 % | 1.38 % | 2.31 % | 31.66 % | 1.26 % | 2.38 % |
4 | 31.90 % | 1.35 % | 2.33 % | 31.91 % | 1.30 % | 2.30 % |
5 | 31.81 % | 1.36 % | 2.39 % | 31.75 % | 1.38 % | 2.31 % |
6 | 31.98 % | 1.32 % | 2.32 % | 31.75 % | 1.35 % | 2.26 % |
平均值 | 31.86 % | 1.36 % | 2.33 % | 31.78 % | 1.34 % | 2.31 % |
RSD | 0.2 % | 2.2 % | 1.4 % | 0.3 % | 3.7 % | 1.9 % |
名称 | 人员A | 人员B | ||||
---|---|---|---|---|---|---|
EG | DEG | IPA | EG | DEG | IPA | |
1 | 31.88 % | 1.40 % | 2.30 % | 31.74 % | 1.36 % | 2.28 % |
2 | 31.78 % | 1.33 % | 2.35 % | 31.88 % | 1.39 % | 2.34 % |
3 | 31.83 % | 1.38 % | 2.31 % | 31.66 % | 1.26 % | 2.38 % |
4 | 31.90 % | 1.35 % | 2.33 % | 31.91 % | 1.30 % | 2.30 % |
5 | 31.81 % | 1.36 % | 2.39 % | 31.75 % | 1.38 % | 2.31 % |
6 | 31.98 % | 1.32 % | 2.32 % | 31.75 % | 1.35 % | 2.26 % |
平均值 | 31.86 % | 1.36 % | 2.33 % | 31.78 % | 1.34 % | 2.31 % |
RSD | 0.2 % | 2.2 % | 1.4 % | 0.3 % | 3.7 % | 1.9 % |
名称 | 日内精密度(n=6) | 日间精密度(n=6) | ||||
---|---|---|---|---|---|---|
IPA | EG | DEG | IPA | EG | DEG | |
RSD | 1.21 % | 0.55 % | 1.47 % | 3.06 % | 1.84 % | 3.20 % |
测试结果⁃1 | 2.31 % | 32.55 % | 1.30 % | 2.35 % | 32.85 % | 1.33 % |
测试结果⁃2 | 2.35 % | 32.62 % | 1.31 % | 2.24 % | 31.87 % | 1.28 % |
测试结果⁃3 | 2.28 % | 32.78 % | 1.32 % | 2.38 % | 32.64 % | 1.35 % |
测试结果⁃4 | 2.30 % | 32.41 % | 1.35 % | 2.35 % | 32.96 % | 1.34 % |
测试结果⁃5 | 2.34 % | 32.38 % | 1.30 % | 2.20 % | 31.47 % | 1.24 % |
测试结果⁃6 | 2.29 % | 32.29 % | 1.33 % | 2.31 % | 32.66 % | 1.32 % |
名称 | 日内精密度(n=6) | 日间精密度(n=6) | ||||
---|---|---|---|---|---|---|
IPA | EG | DEG | IPA | EG | DEG | |
RSD | 1.21 % | 0.55 % | 1.47 % | 3.06 % | 1.84 % | 3.20 % |
测试结果⁃1 | 2.31 % | 32.55 % | 1.30 % | 2.35 % | 32.85 % | 1.33 % |
测试结果⁃2 | 2.35 % | 32.62 % | 1.31 % | 2.24 % | 31.87 % | 1.28 % |
测试结果⁃3 | 2.28 % | 32.78 % | 1.32 % | 2.38 % | 32.64 % | 1.35 % |
测试结果⁃4 | 2.30 % | 32.41 % | 1.35 % | 2.35 % | 32.96 % | 1.34 % |
测试结果⁃5 | 2.34 % | 32.38 % | 1.30 % | 2.20 % | 31.47 % | 1.24 % |
测试结果⁃6 | 2.29 % | 32.29 % | 1.33 % | 2.31 % | 32.66 % | 1.32 % |
序号 | 品牌 | 品名 | IPA | 乙二醇 | 二甘醇 |
---|---|---|---|---|---|
1 | A | A1饮用水 | 2.33 % | 32.16 % | 1.41 % |
2 | A2饮用水 | 1.72 % | 32.54 % | 1.42 % | |
3 | B | B矿泉水 | 2.06 % | 32.33 % | 1.29 % |
4 | C | C1纯净水 | 2.33 % | 31.26 % | 1.42 % |
5 | C2纯净水 | 2.33 % | 32.44 % | 1.45 % | |
6 | D | D矿泉水 | 1.82 % | 32.89 % | 1.26 % |
7 | E | E纯净水 | 2.30 % | 31.90 % | 1.30 % |
8 | F | F1饮用水 | 2.25 % | 31.56 % | 1.28 % |
9 | F2饮用水 | 0.68 % | 30.28 % | 1.24 % | |
10 | G | G1矿泉水 | 2.07 % | 32.37 % | 1.33 % |
11 | G2矿泉水 | 2.04 % | 31.69 % | 1.15 % | |
12 | H | H1矿泉水 | 2.03 % | 32.27 % | 1.17 % |
13 | H2饮用水 | 1.66 % | 32.32 % | 1.25 % | |
14 | I | I矿泉水 | 1.63 % | 31.98 % | 1.24 % |
15 | J | J饮用水 | 1.80 % | 31.36 % | 1.21 % |
16 | K | K矿泉水 | 2.04 % | 32.67 % | 1.44 % |
平均值 | 1.94 % | 32.0 % | 1.30 % | ||
RSD | 21.3 % | 2.0 % | 7.5 % |
序号 | 品牌 | 品名 | IPA | 乙二醇 | 二甘醇 |
---|---|---|---|---|---|
1 | A | A1饮用水 | 2.33 % | 32.16 % | 1.41 % |
2 | A2饮用水 | 1.72 % | 32.54 % | 1.42 % | |
3 | B | B矿泉水 | 2.06 % | 32.33 % | 1.29 % |
4 | C | C1纯净水 | 2.33 % | 31.26 % | 1.42 % |
5 | C2纯净水 | 2.33 % | 32.44 % | 1.45 % | |
6 | D | D矿泉水 | 1.82 % | 32.89 % | 1.26 % |
7 | E | E纯净水 | 2.30 % | 31.90 % | 1.30 % |
8 | F | F1饮用水 | 2.25 % | 31.56 % | 1.28 % |
9 | F2饮用水 | 0.68 % | 30.28 % | 1.24 % | |
10 | G | G1矿泉水 | 2.07 % | 32.37 % | 1.33 % |
11 | G2矿泉水 | 2.04 % | 31.69 % | 1.15 % | |
12 | H | H1矿泉水 | 2.03 % | 32.27 % | 1.17 % |
13 | H2饮用水 | 1.66 % | 32.32 % | 1.25 % | |
14 | I | I矿泉水 | 1.63 % | 31.98 % | 1.24 % |
15 | J | J饮用水 | 1.80 % | 31.36 % | 1.21 % |
16 | K | K矿泉水 | 2.04 % | 32.67 % | 1.44 % |
平均值 | 1.94 % | 32.0 % | 1.30 % | ||
RSD | 21.3 % | 2.0 % | 7.5 % |
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