Monitoring trihalomethanes and nitrogenous disinfection by-products in blending desalinated waters using solid-phase microextraction and gas chromatography.

Monitoring trihalomethanes and nitrogenous disinfection by-products in blending desalinated waters using solid-phase microextraction and gas chromatography.

Environmental technology (2016-11-29)

Providencia González-Hernández, Manuel Hernández-Padrón, Verónica Pino, Ana M Afonso, Juan H Ayala

摘要

A simple and efficient method has been developed for the extraction and determination of 16 common volatile halogenated disinfection by-products (DBPs) (four trihalomethanes, six haloacetonitriles, and six halonitromethanes) in blending desalinated waters, using headspace solid-phase microextraction and gas chromatography with flame ionization detector (HS-SPME/GC-FID). After the optimization using factorial designs of the HS-SPME parameters (optimum: carboxen/polydimethylsiloxane such as fiber, extraction time of 60 min at 30°C, pH 7, addition of 40% (w/v) of sodium chloride, and desorption time of 2 min at 250°C), quantification limits ranged from 3.03 to 40.8 µg L

材料

产品编号

品牌

产品描述

57298-U

Supelco

SPME萃取头组件, 50/30µm DVB/CAR/PDMS, StableFlex (1 cm), needle size 23 ga, Autosampler, pk of 3, plain gray hub

57348-U

Supelco

SPME萃取头组件, 50/30µm DVB/CAR/PDMS, StableFlex (2cm), needle size 24 ga, Autosampler, pk of 3, notched gray hub

57328-U

Supelco

SPME萃取头组件, 50/30µm DVB/CAR/PDMS, StableFlex (1cm), needle size 24 ga, Manual Holder, pk of 3, plain gray hub

57299-U

Supelco

SPME萃取头组件, 50/30µm DVB/CAR/PDMS, StableFlex (2cm), needle size 23 ga, Autosampler, pk of 3, notched gray hub

57341-U

Supelco

SPME 纤维组件聚二甲基硅氧烷 (PDMS), 100 μm PDMS, Fused Silica (1 cm), needle size 23 ga, Autosampler, pk of 3, red hub

57329-U

Supelco

SPME萃取头组件, 50/30µm DVB/CAR/PDMS, StableFlex (1 cm), needle size 24 ga, Autosampler, pk of 3, plain gray hub

20358

Supelco

ORBO^™ Carboxen-564 管, W,F,F separators, O.D. × L 6 mm × 75 mm, pkg of 25 ea, for analyte group MEK (methylethyl ketone)

20355

Supelco

ORBO-78 400/200mg，每包 25 支, W,W,W separators, O.D. × L 6 mm × 110 mm, pkg of 25 ea

25467

Supelco

Carboxen^®1010 多孔层壁涂开管柱, L × I.D. 30 m × 0.53 mm, average thickness 30 μm

57300-U

Supelco

SPME 纤维组件聚二甲基硅氧烷 (PDMS), 100 μm PDMS, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3, red hub

T53805

Sigma-Aldrich

三氯乙腈, 98%

10478-U

Supelco

Carbopack^®吸附剂, matrix Carboxen^® 1000, 60-80 mesh, bottle of 10 g

57318

Supelco

SPME固相微萃取萃取头 Carboxen/聚二甲基硅氧烷 (CAR/PDMS), 75 μm CAR/PDMS, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3, black hub

57301

Supelco

SPME 纤维组件聚二甲基硅氧烷 (PDMS), 100 μm PDMS, Fused Silica (1 cm), needle size 24 ga, Autosampler, pk of 3, red hub

57310-U

Supelco

SPME固相微萃取萃取头，二甲基硅氧烷/二乙烯基苯(PDMS/DVB), 65 μm PDMS/DVB, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3, blue hub

25461

Supelco

Carboxen^® 1006 多孔层壁涂开管柱, L × I.D. 30 m × 0.53 mm, average thickness 30 μm

57319

Supelco

SPME固相微萃取萃取头 Carboxen/聚二甲基硅氧烷 (CAR/PDMS), 75 μm CAR/PDMS, Fused Silica (1 cm), needle size 24 ga, Autosampler, pk of 3, black hub

57295-U

Supelco

SPME固相微萃取萃取头 Carboxen/聚二甲基硅氧烷 (CAR/PDMS), 85 μm CAR/PDMS, StableFlex (1 cm), needle size 23 ga, Autosampler, pk of 3, light blue hub

57293-U

Supelco

SPME固相微萃取萃取头，二甲基硅氧烷/二乙烯基苯(PDMS/DVB), 65 μm PDMS/DVB, StableFlex (1 cm), needle size 23 ga, Autosampler, pk of 3, pink hub

57311

Supelco

SPME固相微萃取萃取头，二甲基硅氧烷/二乙烯基苯(PDMS/DVB), 65 μm PDMS/DVB, Fused Silica (1 cm), needle size 24 ga, Autosampler, pk of 3, blue hub

57326-U

Supelco

SPME固相微萃取萃取头，二甲基硅氧烷/二乙烯基苯(PDMS/DVB), 65 μm PDMS/DVB, StableFlex (1 cm), needle size 24 ga, Manual Holder, pk of 3, pink hub

24246

Supelco

Carboxen^®1010 多孔层壁涂开管柱, L × I.D. 30 m × 0.32 mm, average thickness 15 μm

57334-U

Supelco

SPME固相微萃取萃取头 Carboxen/聚二甲基硅氧烷 (CAR/PDMS), 85 μm CAR/PDMS, StableFlex (1 cm), needle size 24 ga, Manual Holder, pk of 3, light blue hub

206326

Sigma-Aldrich

二溴氯甲烷, 97%

57305

Supelco

聚丙烯酸酯 (PA) 固相微萃取萃取头, 85 μm Polyacrylate, Fused Silica (1 cm), needle size 24 ga, Autosampler, pk of 3, white hub

57327-U

Supelco

SPME固相微萃取萃取头，二甲基硅氧烷/二乙烯基苯(PDMS/DVB), 65 μm PDMS/DVB, StableFlex (1 cm), needle size 24 ga, Autosampler, pk of 3, pink hub

57359-U

Supelco

固相微萃取便携式现场采样器, coating PDMS/DVB

57335-U

Supelco

SPME固相微萃取萃取头 Carboxen/聚二甲基硅氧烷 (CAR/PDMS), 85 μm CAR/PDMS, StableFlex (1 cm), needle size 24 ga, Autosampler, pk of 3, light blue hub

57346-U

Supelco

SPME固相微萃取萃取头，二甲基硅氧烷/二乙烯基苯(PDMS/DVB), 65 μm PDMS/DVB, Fused Silica (1 cm), needle size 23 ga, Manual Holder, pk of 3, blue hub

57294-U

Supelco

聚丙烯酸酯 (PA) 固相微萃取萃取头, 85 μm Polyacrylate, Fused Silica (1 cm), needle size 23 ga, Autosampler, pk of 3, white hub