- 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
PMID27892815
ABSTRACT
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
MATERIALS
Product Number
Brand
Product Description
Supelco
SPME Fiber Assembly, 65 μm PDMS/DVB, StableFlex (1 cm), needle size 24 ga, Autosampler, pk of 3, pink hub
Supelco
SPME Fiber Assembly, 75 μm CAR/PDMS, Fused Silica (1 cm), needle size 23 ga, Autosampler, pk of 3, black hub
Supelco
Carboxen®-1006 PLOT Capillary GC Column, L × I.D. 30 m × 0.53 mm, average thickness 30 μm
Supelco
SPME Fiber Assembly, 65 μm PDMS/DVB, Metal Alloy (1 cm), needle size 23 ga, Autosampler, pk of 1, pink hub
Supelco
SPME Fiber Assembly, 50/30µm DVB/CAR/PDMS, Metal Alloy (1cm), needle size 23 ga, Autosampler, pk of, plain gray hub
Supelco
SPME Fiber Assembly, 50/30µm DVB/CAR/PDMS, Metal Alloy (2cm), needle size 23 ga, Autosampler, pk of 1, plain gray hub
Supelco
SPME Fiber Assembly, 75 μm CAR/PDMS, Fused Silica (1 cm), needle size 24 ga, Autosampler, pk of 3, black hub
Supelco
SPME Fiber Assembly, 7 μm PDMS, Fused Silica (1 cm), needle size 24 ga, Autosampler, pk of 3, green hub
Supelco
SPME Fiber Assembly, 85 μm Polyacrylate, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3, white hub
Supelco
SPME Fiber Assembly, 85 μm Polyacrylate, Fused Silica (1 cm), needle size 24 ga, Autosampler, pk of 3, white hub
Supelco
Carboxen®-1010 PLOT Capillary GC Column, L × I.D. 30 m × 0.53 mm, average thickness 30 μm
Supelco
SPME Fiber Assembly, 65 μm PDMS/DVB, Fused Silica (1 cm), needle size 24 ga, Autosampler, pk of 3, blue hub
Supelco
SPME Fiber Assembly, 30 μm PDMS, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3, yellow hub
Supelco
SPME Fiber Assembly, 30 μm PDMS, Fused Silica (1 cm), needle size 24 ga, Autosampler, pk of 3, yellow hub
Supelco
SPME Fiber Assembly, 100 μm PDMS, Fused Silica (1 cm), needle size 24 ga, Autosampler, pk of 3, red hub
Supelco
SPME Fiber Assembly, 65 μm PDMS/DVB, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3, blue hub
Supelco
SPME Fiber Assembly, 75 μm CAR/PDMS, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3, black hub
Supelco
SPME Fiber Assembly, 7 μm PDMS, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3, green hub
Supelco
Carboxen®-1010 PLOT Capillary GC Column, L × I.D. 30 m × 0.32 mm, average thickness 15 μm
Supelco
SPME Fiber Assembly, 100 μm PDMS, Metal Alloy (1 cm), needle size 23 ga, Autosampler, pk of 1, red hub