采用顶空固相微萃取-全二维气相色谱飞行时间质谱联用法,对水样 1(珠江水)和进行分析水样 2(池塘水),一次检测得到水质样品中挥发性有机物组分全貌。水样 1(珠江水)共检测到 531 个组分。包含 9 种卤代烃,5 种硫化物,4 种含氮化合物,98 种芳烃,20 种含氧芳烃以及 4 种萜烯及萜烯含氧化合物,其余化合物主要为含氧的醇、醛、酮、酯类及脂肪烃。对水样 2(池塘水)共检测到 239 个组分。包含 5 种卤代烃,16 种硫化物,5种含氮化合物,33 种芳烃,14 种含氧芳烃以及 24 种萜烯及萜烯含氧化合物,其余化合物主要为含氧的醇、醛、酮、酯类及脂肪烃。
广州禾信仪器股份有限公司 基于顶空固相微萃取-全二维气相色谱飞行时间质谱联用法的珠江水和池塘水样中挥发性成分分析 2019.04 一、实验仪器及样品 1、 设备1:全二维气相色谱-飞行时间质谱联用仪(禾信 GGT 0610)。 2、 设备2:全自动多功能在线前处理进样平台(CTC PAL RTC)。 3、 样品:水样1(采自珠江某码头,江面较多多只););水样2(采自广州某城中村,水体富营养化长满浮萍,有臭味); lug/mL 正构烷烃(C7-C30)。 图1实验仪器实物图 二、实验条件 a) 前处理进样平台条件: 采用65um PDMS/DVB萃取头,量量8mL 水样于固相微萃取样品瓶中,萃取前老化时间为 15min,老化温度为260℃,孵化时间为 30min,孵化温度为60℃,振摇速度为 350rpm, 萃取时间为 30min,解析时间为180s,解析温度为250℃。 b)色谱条件: 采用前进样口,温度为250℃,不分流进样;全二维第一根色谱柱为 BPX5(60mx0.25mmx0.25um),调制器条件见c),第二根色谱柱为 DB-wax(1.5m×0.1mmx0.1um),载气为氦气,色谱柱恒定流量为1.5mL/min ;柱箱采用程序升温,起始温度为40℃,保持3min, 以3℃/min 升温到240℃,保持3min, 共72.67min;检测器为 EI-TOFMS(具体条件见d)。 c) 全二维气相调制器条件: 调制柱为 HV 调制柱(1.2mx0.25 mm),调制周期为5s,其中解析时间为1s;N2补偿气为 0.15 MPa,同步 GC 升温程序,调制器进口比柱箱高30℃,调制器出口比柱箱高120℃。 d)飞行时间质谱条件: 接口温度为250℃,离子源温度为230℃,灯丝2发射电流150uA, 电离能为70eV, MCP 电压为-1650V,采集质量范围为40-500amu,阈值设为50,采集速度为100谱/秒,不设溶剂延迟。 三、数据处理方法 1. 数据采集完成后,采用全二维数据处理工作站软件 Canvas 载入数据,,自动绘制全二维 TIC 轮廓图,并对图中信噪比大于3的峰自动识别,标识出的每一个峰点即代表一种化合物,每个化合物由一对保留时间确定,X轴方向为第一维保留时间(min), Y轴方向为第二维保留时间(s)。 2. 峰列表给出了化合物详细的定性结果,每一个化合物和 NIST 谱库做匹配,结合匹配度、RI指数以及质谱图实际情况,将可能的化合物列入峰列表。 3. 根据组分的官能团进行组分化合物种类统计,统计各个族的组分个数; 四、结果分析 4.1水样1(珠江水) 水样1的全二维气相色谱 TIC 轮廓图如图2,珠江水样共检测到531个组分,定性结果见下表2。包含9种卤代烃,5种硫化物,4种含氮化合物,98种芳烃,20种含氧芳烃以及4种萜烯及萜烯含氧化合物,其余化合物主要为含氧的醇、醛、酮、酯类及脂肪烃。其中峰面积百分比大于0.5%的化合物共有36种,见下表1。 图2水样1全二维色谱 TIC轮廓图 表1水样1主要化合物列表 序号 化合物 一维保留时间(min) 二维保留时间(s) 百分比% 1 Benzene, 1,3-dimethyl- 19.56 0.826 2.104 2 o-Xylene 20.81 0.950 1.048 3 Acetic acid, N'-[3-(1-hydroxy-1-phenylethyl)phenyl]hydrazide 22.81 4.384 0.997 4 Heptane, 2,2,4,6,6-pentamethyl- 25.65 0.175 0.558 5 Benzene, 1,2,3-trimethyl- 26.48 0.905 1.257 6 Octanal 26.81 0.848 0.900 7 Benzene,1-ethenyl-4-ethyl- 27.31 1.899 4.773 8 7-Oxabicyclo[2.2.1]heptane,1-methyl-4-(1-methylethyl)- 27.40 0.495 0.494 9 Benzene, 1,2,3-trimethyl- 27.98 1.047 0.592 10 Benzene, 1-ethenyl-3-ethyl- 28.23 1.618 5.882 11 Benzene, 1,4-diethenyl- 29.31 2.604 1.828 12 Benzene,1,3-diethenyl- 30.48 2.497 1.746 13 Undecane 31.48 0.196 0.459 14 Nonanal 32.15 0.839 3.364 15 Benzene, 1,2,3,5-tetramethyl- 33.23 0.984 0.581 16 Benzaldehyde, 3-ethyl- 33.40 3.199 0.667 17 Benzaldehyde,4-ethyl- 34.56 3.212 0.562 18 Benzylidenemalonaldehyde 34.90 4.462 3.147 19 Benzylidenemalonaldehyde 36.15 4.440 2.745 20 Naphthalene 37.15 2.504 0.628 21 3-Buten-2-one,4-phenyl-,(E)- 40.73 3.780 4.318 22 Tridecane 41.31 0.204 0.888 23 Cyclohexanol, 2-(1,1-dimethylethyl)- 41.40 0.804 0.758 24 3-Buten-2-one,4-phenyl- 42.31 3.651 3.165 25 Ethanone,1-(2,5-dimethylphenyl)- 43.81 2.276 0.531 26 Ethanone, 1-(3,4-dimethylphenyl)- 44.06 2.057 0.794 27 Tetradecane 45.73 0.236 0.899 28 1-Pentadecene 49.56 0.313 0.645 29 Pentadecane 49.98 0.245 1.072 30 Butylated Hydroxytoluene 50.65 1.130 0.552 31 2,2,4-Trimethyl-1,3-pentanedioldiisobutyrate 53.73 0.810 0.835 32 Hexadecane 53.90 0.257 0.977 33 (7a-Isopropenyl-4,5-dimethyloctahydroinden-4-yl)methanol 57.31 1.233 0.676 34 Heptadecane 57.65 0.318 0.588 35 Octadecane 61.23 0.386 0.641 36 Dibutyl phthalate 67.15 2.875 1.588 表2水样1组分定性列表 序号 化合物 ·维保留时间(min) 二维保留时间(s) 百分比% 1 Trichloromethane 9.15 1.138 0.312 2 Benzene 10.23 0.577 0.045 3 Heptane, 2,5-dimethyl- 10.81 0.139 0.333 4 Methyl IsobutylKetone 13.06 0.715 0.313 5 Hexanal 15.90 0.837 0.081 6 Methane, dibromochloro- 16.23 2.940 0.089 7 Butanoic acid,4-hexen-1-yl ester 16.31 3.446 0.044 8 1-Hexyn-3-ol 16.98 0.198 0.023 9 (S)-3,4-Dimethylpentanol 17.56 0.647 0.016 10 2,4-Dimethyl-1-heptene 17.56 0.190 0.131 11 1-Octene, 6-methyl- 17.90 0.227 0.141 12 2-Pentanol, acetate 18.06 0.580 0.012 13 1,3-Cyclopentadiene, 1,2,3,4-tetramethyl-5-methylene- 18.31 2.110 0.015 527 2-Trifluoroacetoxypentadecane 70.81 1.731 0.034 528 Sulfurous acid, decyl 2-ethylhexyl ester 70.90 0.682 0.098 529 1-Hexadecanol 71.06 0.744 0.024 530 2(3H)-Furanone, 5-dodecyldihydro- 71.90 3.405 0.088 531 Hexadecanoic acid, 15-methyl-, methyl ester 71.98 1.293 0.047 4.2水样2(池塘水) 水样2的全二维气相色谱 TIC 轮廓图如图3,池塘水样共检测到239个组分,见下表4。包含5种卤代烃,16种硫化物,5种含氮化合物,33种芳烃,1,14种含氧芳烃以及24种萜烯及萜烯含氧化合物,其余化合物主要为含氧的醇、醛、酮、酯类及脂肪烃。其中峰面积百分比大于1%的化合物共有25种,见下表3。 图3水样2全二维色谱 TIC 轮廓图 表3水样2主要化合物列表 序号 化合物 一维保留时间(min) 二维保留时间(s) 百分比% 1 Methanethiol 6.56 0.092 1.553 2 Dimethyl sulfide 7.40 0.219 2.885 3 Ethene, 1-chloro-2-fluoro- 10.65 1.179 1.251 4 Methyl Isobutyl Ketone 13.15 0.722 1.514 5 Toluene 14.40 0.791 7.732 6 p-Xylene 19.73 0.826 1.185 7 2-Propenoic acid, butyl ester 20.90 0.851 2.031 8 Benzaldehyde 25.23 3.414 1.175 9 Heptane, 2,2,4,6,6-pentamethyl- 25.73 0.191 2.586 10 Dimethyl trisulfide 25.65 1.687 4.323 11 Decane 26.23 0.218 1.099 12 1-Hexanol, 2-ethyl- 28.15 1.979 2.501 13 Cyclohexene, 1-methyl-4-(1-methylethenyl)-,(S)- 28.40 0.504 1.102 14 Benzene,1-methy1-4-(2-propenyl)- 29.23 1.452 1.427 15 Dodecane,2,7,10-trimethyl- 29.15 0.196 2.179 16 Nonanal 32.31 0.822 5.106 17 (Z)-3-Phenylacrylaldehyde 36.06 3.906 1.557 18 dl-Menthol 36.31 1.690 3.252 19 Tetrasulfide, dimethyl 38.98 2.154 2.870 20 Tridecane 41.40 0.226 4.343 21 3-Buten-2-one, 4-phenyl- 41.40 3.488 2.374 22 Undecanal 42.15 0.809 0.092 23 3-Buten-2-one, 4-phenyl-,(E)- 42.56 3.557 1.607 24 Indole 42.65 2.603 1.450 25 Tetradecane 45.81 0.249 3.199 表4水样2组分定性列表 编号 化合物 一维保留时 间(min) 二维保留时 间(s) 百分比% 1 Methanethio1 6.56 0.092 1.553 2 Acetone 7.15 0.343 0.475 3 Dimethyl sulfide 7.40 0.219 2.885 4 Trichloromethane 9.31 1.122 0.316 5 Ethene, 1-chloro-2-fluoro- 10.65 1.179 1.251 6 Methyl Isobutyl Ketone 13.15 0.722 1.514 7 Disulfide, dimethyl 13.48 1.061 0.863 8 sec-Butyl acetate 13.81 0.585 0.118 9 Toluene 14.40 0.791 7.732 10 Hexanal 15.98 0.850 0.304 11 Acetic acid, butyl ester 16.56 0.741 0.684 12 2,4-Dimethyl-1-heptene 17.65 0.241 0.038 13 Benzene,1,3-dimethyl- 19.15 0.820 0.297 14 1-Methoxy-2-propyl acetate 19.31 1.290 0.071 15 1,1-Hexylenedioxybutane 19.56 0.610 0.097 16 1-Hexanol 19.65 2.676 0.058 17 p-Xylene 19.73 0.826 1.185 18 3-Heptanone 20.40 0.810 0.027 19 2-Heptanone 20.65 0.940 0.109 20 Nonane 20.81 0.202 0.061 21 Oxime-, methoxy-phenyl-_ 20.90 1.189 0.068 22 2-Propenoic acid, butyl ester 20.90 0.851 2.031 23 Cyclohexanol 20.98 3.056 0.039 24 Styrene 20.98 1.373 0.308 25 o-Xylene 20.98 0.936 0.457 26 2,4-Dithiapentane 21.06 1.666 0.074 27 Heptanal 21.40 0.875 0.350 28 Cyclohexanone 21.48 1.674 0.523 29 Propanoic acid, butyl ester 21.48 0.662 0.429 30 Ethanol,2-butoxy- 21.56 2.845 0.219 31 Pentane,1-(methylthio)- 22.15 0.592 0.046 32 Disulfide, methyl propyl 22.31 0.397 0.033 33 Disulfide, methyl 2-propenyl 22.40 1.362 0.100 34 1-(3-Hydroxy-4-methylphenyl)-1,3,3,6-tetramethylindan- 5-o1 22.48 0.260 0.070 35 4-Heptanone,3-methyl- 22.56 0.665 0.029 36 1,3-Dioxane, 4,4-dimethyl- 22.98 0.749 0.045 37 Benzoic acid, 2-formyl-4,6-dimethoxy-, 8,8-dimethoxyoct-2-yl ester 22.98 4.258 0.624 38 Bicyclo[3.1.1]hept-2-ene,3,6,6-trimethyl- 23.06 0.317 0.176 39 2-Propanol, 1-butoxy- 23.40 1.625 0.046 40 1,1,3,3,5,5,7,7-Octamethyl-7-(2-methylpropoxy)tetrasilo xan-1-o1 23.48 0.224 0.113 41 Propanoic acid, 2-methyl-, butyl ester 23.81 0.546 0.054 42 Camphene 24.06 0.390 0.027 43 2-Heptanone,6-methyl- 24.15 0.865 0.041 44 2-Ethylhexanal 24.15 0.680 0.268 45 Benzene, propyl- 24.23 0.786 0.058 46 1-Heptanol 25.06 2.399 0.248 47 Mesitylene 25.15 0.858 0.060 48 Octane, 2,2,6-trimethyl- 25.23 0.194 0.031 49 Benzaldehyde 25.23 3.414 1.175 50 1-Octen-3-one 25.48 1.045 0.040 51 1-Octen-3-ol 25.56 2.168 0.048 52 Dimethyltrisulfide 25.65 1.687 4.323 53 B-Pinene 25.65 0.435 0.062 54 2,3-Octanedione 25.73 1.097 0.034 55 Heptane, 2,2,4,6,6-pentamethyl- 25.73 0.191 2.586 56 Benzene,1-ethyl-2-methyl- 25.73 0.886 0.090 57 B-Myrcene 25.90 0.483 0.028 58 3-Octanone 25.90 0.797 0.076 59 5-Hepten-2-one,6-methyl- 25.90 1.213 0.265 60 Furan, 2-pentyl- 26.06 0.682 0.041 61 2-Octanone 26.15 0.923 0.046 62 Decane 26.23 0.218 1.099 63 Butanoic acid, butyl ester 26.23 0.618 0.604 64 di-tert-Butyl dicarbonate 26.23 0.383 0.030 65 Benzonitrile 26.48 4.372 0.049 66 Benzene, 1,2,4-trimethyl- 26.56 0.914 0.314 67 Octane, 2,3,7-trimethyl- 26.56 0.217 0.097 68 Octane, 2,3,7-trimethyl- 26.81 0.207 0.147 69 3-Hexen-1-ol,acetate,(Z)- 26.81 0.968 0.028 70 Octanal 26.90 0.853 0.742 71 3-Carene 27.23 0.450 0.039 72 Heptane, 5-ethyl-2,2,3-trimethyl- 27.40 0.198 0.592 73 2-Octene, 4-ethyl-, (E)- 27.48 0.255 0.180 74 7-Oxabicyclo[2.2.1]heptane, 1-methyl-4-(1-methylethyl)- 27.56 0.502 0.042 75 2-Decene, 8-methyl-, (Z)- 27.65 0.251 0.140 76 di-tert-Butyl dicarbonate 27.81 0.228 0.594 77 1-Hexanol, 2-ethyl- 28.15 1.979 2.501 78 Benzene, 1-methoxy-4-methyl- 28.15 1.611 0.030 79 Benzene, 1-methyl-3-(1-methylethyl)- 28.15 0.729 0.574 80 Benzene, 1,2,3-trimethyl- 28.15 1.040 0.132 81 4-Cyanocyclohexene 28.40 2.934 0.229 82 Cyclohexene, 1-methyl-4-(1-methylethenyl)-,(S)- 28.40 0.504 1.102 83 Eucalyptol 28.65 0.547 0.091 84 Dodecane,2,7,10-trimethyl- 29.15 0.196 2.179 85 Benzene, 1-methyl-4-(2-propenyl)- 29.23 1.452 1.427 86 Butanoic acid, 3-methylbutyl ester 29.48 0.585 0.037 87 Dibutoxymethane 29.48 0.465 0.076 88 Benzene, 1-methyl-3-propyl- 29.56 0.746 0.050 89 Heptane, 4-ethyl-2,2,6,6-tetramethyl- 29.65 0.202 0.773 90 Benzene,2-ethyl-1,4-dimethyl- 29.90 0.777 0.107 91 Octane, 1-chloro- 29.98 0.524 0.110 92 Dodecane, 2,7,10-trimethyl- 30.06 0.212 0.207 93 Sulfurous acid, decyl pentyl ester 30.31 0.225 0.789 94 Benzene, 1-methyl-2-propyl- 30.40 0.814 0.043 95 1-Octanol 30.48 2.108 0.099 96 Carbonic acid, octadecyl phenyl ester 30.56 1.002 0.027 97 2-Undecanethiol, 2-methyl- 30.56 0.250 0.243 98 Benzene, 2-ethyl-1,4-dimethyl- 30.90 0.840 0.038 99 Acetophenone 30.90 3.254 0.406 100 Ethane, 1,1'-[methylenebis(thio)]bis- 31.06 1.543 0.090 101 Benzene, 2-ethyl-1,3-dimethyl- 31.06 0.864 0.055 102 p-Cresol 31.15 2.570 0.615 103 2-Butoxyethyl acetate 31.23 1.200 0.033 104 Benzene, 4-ethyl-1,2-dimethyl- 31.40 0.864 0.190 105 Benzene, 1-ethenyl-4-ethyl- 31.48 1.134 0.039 106 3-Octanol, 3,7-dimethyl- 31.81 0.981 0.271 107 Linalool 31.98 1.658 0.288 108 Nonanal 32.31 0.822 5.106 109 Benzene, 1,2,4,5-tetramethyl- 33.15 0.966 0.053 110 Naphthalene, decahydro-2-methyl- 33.23 0.383 0.019 111 Benzene, 1,2,3,5-tetramethyl- 33.31 1.007 0.145 112 Acetic acid, 2-ethylhexyl ester 34.15 0.645 0.531 113 2,2-Dimethylindene,2,3-dihydro- 34.40 1.124 0.064 114 Benzene, (2-methyl-1-butenyl)- 34.56 1.092 0.134 115 Trisulfide, methyl 2-propenyl 34.73 1.723 0.068 116 Benzaldehyde, 3-ethyl- 34.73 2.763 0.361 117 Cyclohexanol, 1-methyl-4-(1-methylethenyl)- 34.90 1.866 0.032 118 Cyclohexanemethanol,a,a,4-trimethyl- 34.90 1.409 0.164 119 Benzene, 1,2,3,4-tetramethyl- 35.06 1.080 0.108 120 (+)-2-Bornanone 35.15 1.280 0.181 121 Cyclohexanone, 5-methyl-2-(1-methylethyl)-, cis- 35.31 0.978 0.092 122 Cyclopentane,1,2-dimethyl-3-(1-methylethyl)- 35.48 0.264 0.125 123 2-Decen-1-ol 35.56 0.802 0.077 124 1-Nonanol 35.56 1.896 0.096 125 Benzaldehyde,4-ethyl- 35.81 2.804 0.107 126 Benzaldehyde,2,4-dimethyl- 35.90 2.760 0.138 127 Cyclohexanol, 5-methyl-2-(1-methylethyl)-,(1a,2o,5B)- 35.98 1.441 0.100 128 (Z)-3-Phenylacrylaldehyde 36.06 3.906 1.557 129 Bicyclo[2.2.1]heptane, 2-chloro-1,7,7-trimethyl-, (1R-endo)- 36.15 0.728 0.097 130 Benzaldehyde, 4-ethyl- 36.15 2.706 0.034 13 4-Methyl-1,2,3-trithiolane 36.23 2.792 0.045 132 Cyclohexane, 1,2,3-trimethyl- 36.23 0.261 0.449 133 endo-Borneol 36.31 2.219 0.085 134 Cyclohexanol,2-(1,1-dimethylethyl)- 36.31 1.455 0.045 135 dl-Menthol 36.31 1.690 3.252 136 Benzene,(1-methyl-2-butynyl)- 36.65 1.573 0.047 137 (Z)-3-Phenylacrylaldehyde 37.15 3.961 1.293 138 Decane,5-ethyl-5-methyl- 37.15 0.251 0.558 139 a-Terpineol 37.23 1.956 0.233 140 Naphthalene 37.31 2.456 0.374 141 Decanal 37.40 0.822 0.709 142 2-Ethylhexyl acrylate 38.15 0.705 0.058 143 Cyclohexanol, 4-(1,1-dimethylethyl)- 38.31 2.211 0.044 144 2-Ethyl-1-hexanol 38.48 0.590 0.050 145 Phosphonoacetic Acid, 3TMS derivative 38.56 1.212 0.031 146 1-Octanol,2-butyl- 38.98 0.288 0.172 147 4a-(1-Hydroxy-ethyl)-hexahydrobenzo[1,3]dioxin-4-one 38.98 0.444 0.058 148 Tetrasulfide, dimethyl 38.98 2.154 2.870 149 Undecane, 2,3-dimethyl- 39.40 0.235 0.208 150 Ethanone, 1-(4-ethylphenyl)- 40.15 2.551 0.149 151 2-Decenal,(Z)- 40.23 1.168 0.034 152 Benzeneacetaldehyde,a-ethylidene- 40.56 3.983 0.097 153 2-Tridecene, (Z)- 40.73 0.246 0.403 154 3-Trifluoroacetoxytridecane 40.90 0.265 0.169 155 1-Tridecene 41.06 0.278 0.392 156 Ethanone,1-(2,5-dimethylphenyl)- 41.31 2.614 0.108 157 2-Undecanone 41.40 0.840 0.034 158 3-Buten-2-one,4-phenyl- 41.40 3.488 2.374 159 Tridecane 41.40 0.226 4.343 160 Cyclohexanol, 2-(1,1-dimethylethyl)- 41.56 0.790 0.053 161 1-Octanol, 2,2-dimethyl- 41.65 0.240 0.626 162 Undecanal 42.15 0.809 0.092 163 Dodecane, 2,7,10-trimethyl- 42.23 0.218 0.803 164 1-Decanol,2-ethyl- 42.48 0.250 0.220 165 Naphthalene,2-methyl- 42.56 2.235 0.310 166 3-Buten-2-one, 4-phenyl-,(E)- 42.56 3.557 1.607 167 1-Iodo-2-methylundecane 42.65 0.232 0.175 168 Indole 42.65 2.603 1.450 169 Sulfurous acid, dodecyl 2-propyl ester 42.90 0.232 0.245 170 Dodecane, 2,7,10-trimethyl- 43.06 0.230 0.203 171 1H-Indene, 1-ethylidene- 43.40 2.336 0.100 172 Tridecane, 5-methyl- 43.73 0.235 0.559 173 1-Iodo-2-methylundecane 44.23 0.229 0.318 174 4-Ethylbenzoic acid, 2-tetrahydrofurylmethyl ester 44.23 2.026 0.186 175 Ethanone, 1-(3,4-dimethylphenyl)- 44.48 1.715 0.111 176 3,5-Dibutoxy-1,1,1,7,7,7-hexamethyl-3,5-bis(trimethylsil oxy)tetrasiloxane 44.56 0.731 0.179 177 Tridecane, 3-methyl- 44.56 0.229 0.414 178 Oxazole, 5-methyl-2-phenyl- 45.23 2.994 0.050 179 Propanoic acid, 2-methyl-, 3-hydroxy-2,2,4-trimethylpentyl ester 45.23 1.663 0.160 180 Ethanone, 1-[4-(1-methylethenyl)phenyl]- 45.23 2.833 0.105 181 Fructofuranose, 2,6-anhydro-1,3,4-tri-O-methyl-, B-d- 45.81 3.429 0.042 182 Tetradecane 45.81 0.249 3.199 183 Tricyclo[2.2.1.0(2,6)]heptane, 1,7-dimethyl-7-(4-methyl-3-pentenyl)-,(-)- 45.90 0.508 0.032 184 1-Penten-3-one,1-phenyl- 45.98 2.743 0.081 185 Dodecanal 46.65 0.809 0.156 186 1H-Indole, 4-methyl- 46.81 2.251 0.369 187 5-Methyl-1,2,3,4-tetrathiane 46.81 2.923 0.158 188 Aromandendrene 47.48 0.595 0.124 189 Naphthalene,1,5-dimethyl- 47.48 2.054 0.033 190 1H-3a,7-Methanoazulene, 2,3,4,7,8,8a-hexahydro-3,6,8,8-tetramethyl-, [3R-(3a,3aB,7β,8ao)]- 47.73 0.567 0.042 191 Heptadecane, 2,6-dimethyl- 48.06 0.275 0.131 192 Cyclopentane, nonyl- 48.31 0.323 0.328 193 Dodecane, 2,7,10-trimethyl- 48.31 0.242 0.183 194 5,9-Undecadien-2-one,6,10-dimethyl-,(E)- 48.31 1.180 0.067 195 1-Iodo-2-methylundecane 48.48 0.264 0.186 196 Ethanone, 1,1'-(1,4-phenylene)bis- 48.48 1.057 0.103 197 Dodecane, 1-chloro- 49.23 0.545 0.069 198 1-Dodecanol 49.31 1.507 0.295 199 Ethanone, 1,1'-(1,4-phenylene)bis- 49.31 1.191 0.058 200 Acetic acid, trifluoro-, 3,7-dimethyloctyl ester 49.48 0.306 0.099 201 a Isomethyl ionone 49.73 1.111 0.039 202 9-Octadecene, (E)- 49.73 0.321 0.452 203 Pentadecane 50.06 0.257 1.764 204 Butylated Hydroxytoluene 50.73 1.138 0.213 205 trans-2-Undecen-1-o1 50.90 0.814 0.044 206 Pentadecane, 7-methyl- 51.81 0.275 0.088 207 Pentadecane, 5-methyl- 52.06 0.270 0.126 208 Sulfurous acid,2-propyl tridecyl ester 52.56 0.276 0.084 209 n-Nonylcyclohexane 52.65 0.368 0.133 210 3,5-Di-tert-butylbenzoic acid 52.65 0.998 0.026 211 Dodecane,2,7,10-trimethyl- 52.90 0.279 0.105 212 5-Octadecene,(E)- 53.73 0.350 0.100 213 2,2,4-Trimethyl-1,3-pentanediol diisobutyrate 53.81 0.823 0.235 214 5-Octadecene, (E)- 54.40 0.322 0.034 215 Caryophyllenyl alcohol 54.40 1.475 0.030 216 Tetradecanal 54.90 0.827 0.076 217 2-Isopropenyl-5-methyl-6-hepten-1-ol 55.23 1.346 0.058 218 (3R,3aS,6S,7R)-3,6,8,8-Tetramethyloctahydro-1H-3a,7- methanoazulen-6-ol 55.90 1.621 0.061 219 5-Methylsalicylic acid, 2TMS derivative 56.15 1.361 0.104 220 Hexadecen-1-ol,trans-9- 56.48 0.354 0.038 221 1,1-Dimethyl-4a-hydroxymethyldecalin-2-o1 56.90 1.570 0.036 222 1,8,11,14-Heptadecatetraene, (Z,Z,Z)- 56.98 0.486 0.042 223 1,1'-Biphenyl, 2,2',5,5'-tetramethyl- 57.06 1.714 0.117 224 1,1,1,3,5,7,9,11,11,11-Decamethyl-5-(trimethylsiloxy)he xasiloxane 57.06 0.629 0.075 225 Benzene, 1,1'-(1,3-propanediyl)bis- 57.23 2.061 0.056 226 (7a-Isopropenyl-4,5-dimethyloctahydroinden-4-yl)metha nol 57.40 1.235 0.098 227 5-Octadecene,(E)- 57.56 0.361 0.114 228 Tricyclo[4.3.0.0(7,9)]nonane, 2,2,5,5,8,8-hexamethyl-, (1a,6B,7a,9?- 57.73 1.280 0.033 229 Heptadecane 57.73 0.325 0.106 230 2-(p-Tolylmethyl)-p-xylene 57.90 1.862 0.303 231 2-Nonanone, 9-hydroxy- 57.98 0.896 0.040 232 1,1'-Biphenyl, 3,4-diethyl- 58.31 1.806 0.127 233 Pentadecanal- 58.65 0.879 0.084 234 2,5-Dihydroxybenzoic acid, 3TMS derivative 62.15 0.720 0.070 235 Hexadecanal 62.23 0.942 0.071 236 Cyclopenta[g]-2-benzopyran, 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethyl- 63.81 1.543 0.091 237 1,2-Benzenedicarboxylic acid, bis(2-methylpropyl) ester 63.98 2.483 0.070 238 Dibutyl phthalate 67.15 2.874 0.093 239 Eicosane, 2-methyl- 69.40 3.609 0.205 五、实验小结 1.采用顶空固相微萃取-全二维气相色谱飞行时间质谱联用法对水样1(珠江水)进行分析,共检测到531个组分。包含9种卤代烃,5种硫化物,4种含氮化 合物,98种芳烃,20种含氧芳烃以及4种萜烯及萜烯含氧化合物,其余化合物主要为含氧的醇、醛、酮、酯类及脂肪烃。其中峰面积百分比大于0.5%的化合物共有36种。 2.对水样2(池塘水)共检测到239个组分。包含5种卤代烃,16种硫化物,5种含氮化合物,33种芳烃,14种含氧芳烃以及24种萜烯及萜烯含氧化合物,其余化合物主要为含氧的醇、醛、酮、酯类及脂肪烃。其中峰面积百分比大于1%的化合物共有25种。 采用顶空固相微萃取-全二维气相色谱飞行时间质谱联用法,对水样 1(珠江水)和进行分析水样 2(池塘水),一次检测得到水质样品中挥发性有机物组分全貌。水样 1(珠江水)共检测到 531 个组分。包含 9 种卤代烃,5 种硫化物,4 种含氮化合物,98 种芳烃,20 种含氧芳烃以及 4 种萜烯及萜烯含氧化合物,其余化合物主要为含氧的醇、醛、酮、酯类及脂肪烃。对水样 2(池塘水)共检测到 239 个组分。包含 5 种卤代烃,16 种硫化物,5种含氮化合物,33 种芳烃,14 种含氧芳烃以及 24 种萜烯及萜烯含氧化合物,其余化合物主要为含氧的醇、醛、酮、酯类及脂肪烃。
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广州禾信仪器股份有限公司为您提供《珠江水样、池塘水样中挥发性有机物检测方案(气质联用仪)》,该方案主要用于环境水(除海水)中有机污染物检测,参考标准--,《珠江水样、池塘水样中挥发性有机物检测方案(气质联用仪)》用到的仪器有全二维气相色谱-飞行时间质谱联用仪GGT 0620