水、土壤和底泥中偶氮染料(AZO)的检测-气相色谱质谱法
表1 偶氮化合物标准物质
NO. | Compound | Brand | Purity |
序号 | 化合物 | 品牌 | 纯度 |
5.2.1 | 2-Amino-4-nitrotoluene | Dr.Ehrenstorfer | ≥ 96% |
2-氨基-4-硝基甲苯 | |||
5.2.2 | 4-Chloroanline | Dr.Ehrenstorfer | ≥ 96% |
4-氯苯胺 | |||
5.2.3 | p-toluidine | Dr.Ehrenstorfer | ≥ 96% |
对甲苯胺 | |||
5.2.4 | p-aminoazobenzene | Dr.Ehrenstorfer | ≥ 96% |
4-氨基偶氮苯 | |||
5.2.5 | n-Ethylaniline | Dr.Ehrenstorfer | ≥ 96% |
N-乙基苯胺 | |||
5.2.6 | n,n-diethylanaline | Dr.Ehrenstorfer | ≥ 96% |
N,N-二乙基苯胺 | |||
5.2.7 | m-toluidine | J&K Chemical | ≥ 96% |
间甲苯胺 | |||
5.2.8 | 4-Amino-2',3-dimethylazobenzene | Dr.Ehrenstorfer | ≥ 96% |
邻氨基偶氮甲苯 | |||
5.2.9 | 2,6-Xylidine | Dr.Ehrenstorfer | ≥ 96% |
2,6-二甲基苯胺 | |||
5.2.10 | N-Methylaniline | Dr.Ehrenstorfer | ≥ 96% |
N-甲基苯胺 | |||
5.2.11 | 2- naphthylamine | Chem Service | ≥ 96% |
2-萘胺 | |||
5.2.12 | 3,3'-Dimethoxybenzidine | Chem Service | ≥ 96% |
3,3'-二甲氧基联苯胺 | |||
5.2.13 | 2-chloroaniline | AccuStandard | ≥ 96% |
2-氯苯胺 | |||
5.2.14 | 2-methoxy-5-methylaniline | Dr.Ehrenstorfer | ≥ 96% |
2-甲氧基-5-甲基苯胺 | |||
5.2.15 | 2-Anisidine | Dr.Ehrenstorfer | ≥ 96% |
邻甲氧基苯胺 | |||
5.2.16 | 2,4-Xylidine | Dr.Ehrenstorfer | ≥ 96% |
2,4-二甲基苯胺 | |||
5.2.17 | 2-Methoxy -5- nitroaniline | Chem service | ≥ 96% |
2-甲氧基-5-硝基苯胺 | |||
5.2.18 | 4-chloro-2-methylaniline | Dr.Ehrenstorfer | ≥ 96% |
4-氯邻甲苯胺 | |||
5.2.19 | o-toluidine | Dr.Ehrenstorfer | ≥ 96% |
邻甲基苯胺 | |||
5.2.20 | Aniline | Dr.Ehrenstorfer | ≥ 96% |
苯胺 | |||
5.2.21 | 2,4,5-Trimethylaniline | Chem service | ≥ 96% |
2,4,5-三甲基苯胺 | |||
5.2.22 | 4-Aminobiphenyl | Dr.Ehrenstorfer | ≥ 96% |
4-氨基联苯 | |||
5.2.23 | 3,3-Dichlorobenzine | Dr.Ehrenstorfer | ≥ 96% |
3,3'-二氯联苯胺 | |||
5.2.24 | 4,4-Methylene-bis(2-Chloroaniline) | Dr.Ehrenstorfer | ≥ 96% |
4,4'-二氨基-3,3'-二氯二苯甲烷 | |||
5.2.25 | 4-4'-Oxydianiline | Dr.Ehrenstorfer | ≥ 96% |
4,4'-二氨基二苯醚 | |||
5.2.26 | 4,4'-Diamino-3,3'-dimethyldiphenylmethane | Dr.Ehrenstorfer | ≥ 96% |
4,4'-二氨基-3,3'-二甲基二苯甲烷 | |||
5.2.27 | 4,4'-Diaminodiphenylmethane | Chem service | ≥ 96% |
4,4'-二氨基二苯甲烷 | |||
5.2.28 | 2,4-Diaminotoluene | Dr.Ehrenstorfer | ≥ 96% |
2,4-二氨基甲苯 | |||
5.2.29 | 4-Methoxy-1,3-phenylenediamine | Chem service | ≥ 96% |
4-甲氧基间苯二胺 | |||
5.2.30 | 4,4'-Thiodianiline | Dr.Ehrenstorfer | ≥ 96% |
4,4'-二氨基二苯硫醚 | |||
5.2.31 | p-Phenylenediamine | Dr.Ehrenstorfer | ≥ 96% |
对苯二胺 | |||
5.2.32 | benzidine | Dr.Ehrenstorfer | ≥ 96% |
联苯胺 | |||
5.2.33 | O-Tolidine | Dr.Ehrenstorfer | ≥ 96% |
3,3'-二甲基联苯胺 |
表2 标准曲线的配制
水平 | 目标化合物的浓度 | 加入标准品的体积(5.6) | 定容体积 |
1 | 20 | 4 | 1 |
2 | 50 | 10 | 1 |
3 | 100 | 20 | 1 |
4 | 200 | 40 | 1 |
5 | 500 | 100 | 1 |
Parameters 参数 | Descriptions设置条件 |
Injector temperature 进样口温度 | 300 °C |
Column 色谱住 | DB-5 MS (30.0 m*250 μm*0.25 μm) |
Initial column temperature and hold time 色谱柱初始温度与保持时间 | 60 °C for 3 min; |
Column temperature program 色谱柱升温程序 | 60-310 °C at 30 °C/min, hold for 4 min |
Column flow 柱流速 | 1.0 mL/min |
Sample injection 样品进样体积 Mass range 质谱扫描范围 | Splitless, 2 μL 35-550 amu |
Source temperature 离子源温度 | 230 °C |
MS Quad temperature 四极杆温度 | 150 °C |
表3 SIM参数
Start time(min) | Default | group | calc | ion |
0 | 50 | 1 | 2.3 | 66,77,92,93,99,106,107,136 |
6.16 | 20 | 2 | 1.8 | 77,80,92,94,95,100,104,106,107,108,109,120,121, 122,123,127,129,134,135,137,138,140,141,149 |
8.35 | 30 | 3 | 2.4 | 94,106,115,116,122,141,143,152,153,168,169,188 |
9.89 | 30 | 4 | 1.9 | 77,80,92,106,108,120,156,167,171, 182,184,185,197,198,200 |
10.8 | 20 | 5 | 2.1 | 91,106,120,124,134,180,182,184,186,195,196, 201,211,212,216,225,226,231,244,252,254,266 |
表4 质控规格和验收准则
项目 | 浓度(μg/L) | 可接受范围 | 频率 |
标准曲线 | 20,50,100,200,500,1000 | %RSD≤20% |
当标准曲线检查超出范围时 |
标准曲线控制 | 200 | Recovery: 70% ~ 130% | At least once every 20analysis |
方法空白 | / | < 5 ug/L | Each batch or every 20 samples |
实验室控制样 | 200 | 回收率的范围见表6 70%化合物 | Each batch or every 20 samples |
平行样 | / | RPD < 35% | Each batch or every 20 samples |
RPD(相对百分比差值)= 2|X1-X2| / (X1+X2)
|
表5偶氮化合物信息
NO: 序号 | English names英文名称 | Cas,NO. cas号 | structured结构式 |
1 | 2-Amino-4-nitrotoluene | 99-55-8 | |
2 | 4-Chloroanline | 106-47-8 | |
3 | p-toluidine | 106-49-0 | |
4 | p-aminoazobenzene | 60-09-3 | |
5 | n-Ethylaniline | 103-69-5 | |
6 | n, n-diethylanaline | 91-66-7 | |
7 | 4,4-Methylene-bis(2-Chloroaniline) | 101-14-4 | |
8 | m-toluidine | 108-44-1 | |
9 | O-Tolidine | 119-93-7 | |
10 | 4-Amino-2',3-dimethylazobenzene | 97-56-3 | |
11 | 4-4'-Oxydianiline | 101-80-4 | |
12 | 2,6-Xylidine | 87-62-7 |
|
13 | N-Methylaniline | 100-61-8 | |
14 | 2-Naphthylamine | 91-59-8 |
|
15 | 3,3'-Dimethoxybenzidine | 119-90-4 |
|
16 | 2-chloroaniline | 95-51-2 |
|
17 | 4,4'-Diamino-3,3'-dimethyldiphenyl methane | 838-88-0 | |
18 | 4,4'-Diaminodiphenylmethane | 101-77-9 | |
19 | 2,4-Diaminotoluene | 95-80-7 | |
20 | 4-Methoxy-1,3-phenylenediamine | 615-05-4 | |
21 | 2-methoxy-5-methylaniline | 120-71-8 | |
22 | 2-Anisidine | 90-04-0 |
|
23 | 2,4-Xylidine | 95-68-1 | |
24 | 2-Methoxy -5- nitroaniline | 99-59-2 | |
25 | 4,4'-Thiodianiline | 139-65-1 | |
26 | 4-chloro-2-methylaniline | 95-69-2 |
|
27 | o-toluidine | 95-53-4 |
|
28 | Aniline | 62-53-3 | |
29 | p-Phenylenediamine | 106-50-3 | |
30 | 2,4,5-Trimethylaniline | 137-17-7 | |
31 | 4-Aminobiphenyl | 92-67-1 | |
32 | benzidine | 92-87-5 | |
33 | 3,3-Dichlorobenzine | 91-94-1 |
表6 水、土壤,沉积物和底泥中实验室控制样的范围要求
| The range of recovery (LCS) 回收率范围(LCS) | |||
| ||||
| water 水样 | soil 土样 | ||
compounds 化合物 | LOW低点 | HIGH高点 | LOW低点 | HIGH高点 |
Aniline | 70 | 130 | 70 | 130 |
o&m&p-Toluidine | 70 | 130 | 70 | 130 |
2,4&2,6-Xylidine | 70 | 130 | 70 | 130 |
o-Anisidine | 70 | 130 | 70 | 130 |
2-Chloroaniline | 70 | 130 | 70 | 130 |
p-Chloroaniline | 70 | 130 | 70 | 130 |
p-Cresidine | 70 | 130 | 70 | 130 |
2,4,5-Trimethylaniline | 70 | 130 | 70 | 130 |
4-Chloro-o-Toluidine | 70 | 130 | 70 | 130 |
2-Naphthylamine | 70 | 130 | 70 | 130 |
2-Amino-4-Nitrotoluene | 70 | 130 | 70 | 130 |
4-Aminodiphenyl | 70 | 130 | 70 | 130 |
p-Aminoazobenzene | 70 | 130 | 70 | 130 |
o-Aminoazotoluene | 70 | 130 | 70 | 130 |
4,4-Methylene-Bis(2-Chloroaniline) | 70 | 130 | 70 | 130 |
3,3-Dichlorobenzidine | 70 | 130 | 70 | 130 |
n-Methylaniline | 70 | 130 | 70 | 130 |
n-Ehtylaniline | 70 | 130 | 70 | 130 |
n-n-Diethylanaline | 70 | 130 | 70 | 130 |
5-Nitro-o-anisidine | 70 | 130 | 70 | 130 |
1,4-Phenylenediamine | 40 | 160 | 40 | 160 |
2,4-Toluylenediamine | 30 | 120 | 30 | 120 |
2,4-Diaminoanisole | 30 | 120 | 30 | 120 |
4-4'-Oxydianiline | 30 | 120 | 30 | 120 |
4,4'-Diaminodiphenylmethane | 30 | 120 | 30 | 120 |
Benzidine | 30 | 120 | 30 | 120 |
4,4'-Diamino-3,3'dimethyldiphenyl | 30 | 120 | 30 | 120 |
O-Tolidine | 30 | 120 | 30 | 120 |
4,4'-Thiodianiline | 30 | 120 | 30 | 120 |
3,3'-Dimethoxybenzidine | 30 | 120 | 30 | 120 |
表7 本方法测定的偶氮化合物(水、土壤、沉积物和污泥)
Compound | RT (min) | Primary Ion | Secondary Ion | MDL | LOR | ||
化合物 | 保留 | 主要离子 | 次要离子 | 方法检出限 | 最终检出限 | ||
Water | Soil | Water | Soil | ||||
|
|
| (μg/L) | (mg/kg) | (μg/L) | (mg/kg) | |
Internal standard |
| ||||||
Phenanthrene-d10 | 9.492 | 188.1 |
|
|
|
|
|
Target Compounds |
| ||||||
目标化合物 | |||||||
Aniline | 5.18 | 93 | 66,92 | 0.022 | 0.001 | 0.1 | 0.01 |
苯胺 | |||||||
o&p&m-Toluidine | 5.982 | 106 | 107,77 | 0.052 | 0.002 | 0.3 | 0.03 |
邻&间&对甲苯胺 | |||||||
2,4&2,6-Xylidine | 6.608 | 121 | 120,106 | 0.021 | 0.001 | 0.1 | 0.01 |
2,4&2,6-二甲基苯胺 | |||||||
o-Anisidine | 6.641 | 108 | 80,123 | 0.011 | 0.001 | 0.1 | 0.01 |
邻甲氧基苯胺 | |||||||
2-Chloroaniline | 6.365 | 127 | 129,92 | 0.020 | 0.001 | 0.1 | 0.01 |
2-氯苯胺 | |||||||
p-Chloroaniline | 6.818 | 127 | 129,92 | 0.020 | 0.001 | 0.1 | 0.01 |
4-氯苯胺 | |||||||
p-Cresidine | 7.194 | 122 | 137,94 | 0.025 | 0.001 | 0.1 | 0.01 |
2-甲氧基-5-甲基苯胺 | |||||||
2,4,5-Trimethyl | 7.305 | 120.1 | 135,134 | 0.015 | 0.001 | 0.1 | 0.01 |
2,4,5-三甲基苯胺 | |||||||
4-Chloro-o-Toluidine | 7.349 | 141 | 106,140 | 0.023 | 0.001 | 0.1 | 0.01 |
4-氯邻甲苯胺 | |||||||
2-Naphthylamine | 8.559 | 143 | 115,116 | 0.023 | 0.001 | 0.1 | 0.01 |
2-萘胺 | |||||||
2-Amino-4-Nitrotoluene | 8.716 | 152 | 77,106 | 0.022 | 0.001 | 0.1 | 0.01 |
2-氨基-4-硝基甲苯 | |||||||
4-Aminodiphenyl | 9.335 | 169 | 168,141 | 0.014 | 0.001 | 0.1 | 0.01 |
4-氨基联苯 | |||||||
p-Aminoazobenzene | 10.459 | 92 | 120,197 | 0.022 | 0.001 | 0.1 | 0.01 |
4-氨基偶氮苯 | |||||||
o-Aminoazotoluene | 11.014 | 106 | 225,91 | 0.022 | 0.001 | 0.1 | 0.01 |
邻氨基偶氮甲苯 | |||||||
4,4-Methylene-bis (2-Chloroaniline) | 11.641 | 231 | 266,195 | 0.023 | 0.001 | 0.1 | 0.01 |
4,4-二氨基-3,3'-二氯 二苯甲烷 | |||||||
3,3-Dichlorobenzine | 11.641 | 252 | 254,253 | 0.020 | 0.001 | 0.1 | 0.01 |
3,3-二氯联苯胺 | |||||||
n-Methylaniline | 5.921 | 106 | 107,77 | 0.013 | 0.001 | 0.1 | 0.01 |
N-甲基苯胺 | |||||||
n-Ehtylaniline | 6.353 | 106 | 121,77 | 0.011 | 0.001 | 0.1 | 0.01 |
N-乙基苯胺 | |||||||
n-n-Diethylanaline | 6.907 | 134 | 149,106 | 0.022 | 0.001 | 0.1 | 0.01 |
N,N-二乙基苯胺 | |||||||
5-Nitro-o-anisidine | 9.213 | 168 | 153,122 | 0.022 | 0.001 | 0.1 | 0.01 |
2-甲氧基-5-硝基苯胺 | |||||||
1,4-Phenyle -nediamine | 7.15 | 108.1 | 80,107 | / | / | 5.0 | 0.2 |
对苯二胺 | |||||||
2,4-Toluylene -diamine | 7.758 | 122 | 121,94 | / | / | 5.0 | 0.2 |
2,4-二氨基甲苯 | |||||||
2,4-Diamino -anisole | 8.156 | 123 | 138,95 | / | / | 5.0 | 0.2 |
4-甲氧基间苯二胺 | |||||||
4-4'-Oxydianiline | 10.552 | 200 | 108,171 | / | / | 5.0 | 0.2 |
4,4'-二氨基二苯醚 | |||||||
4,4'-Diaminodiphenylmet | 10.613 | 198 | 197,106 | / | / | 5.0 | 0.2 |
4,4'-二氨基二苯甲烷 | |||||||
Benzidine | 10.593 | 184 | 185,156 | / | / | 5.0 | 0.2 |
联苯胺 | |||||||
4,4'-Diamino-3,3' | 11.098 | 226.2 | 211,120 | / | / | 5.0 | 0.2 |
4,4'-二氨基-3,3'-二 甲基二苯甲烷 | |||||||
O-Tolidine | 11.183 | 212 | 180,106 | / | / | 5.0 | 0.2 |
3,3'-二甲基联苯胺 | |||||||
4,4'-Thiodianiline | 11.37 | 216 | 184,124 | / | / | 5.0 | 0.2 |
4,4'-二氨基二苯硫醚 | |||||||
3,3'-Dimethoxyben | 11.623 | 244 | 201,186 | / | / | 5.0 | 0.2 |
3,3'-二甲氧基联苯胺 |