Determination of acid herbicides in water by LC/MS/MS

Determination and Occurrence of Phenoxyacetic Acid Herbicides and Their Transformation Products in Groundwater Using Ultra High Performance Liquid Chromatography Coupled to Tandem Mass Spectrometry

“…Similar compounds were mecoprop and 2,4-D with LOD of 0.0025 and 0.0006 µg·L −1 respectively, during a 41 min run time. This method does not quantify for as great a number of analytes across several chemical classes, but is able to detect the most number of phenoxyacetic acid herbicides in comparison to other similar methods [3,17,21,23,25,26]. The LOD for each compound analysed using this method was between 0.00008 and 0.0047 µg·L −1 (Table 3).…”

“…They are widely used in agriculture and recreational areas such as golf courses and watercourses. In addition, phenoxyacetic acid herbicides readily degrade through biological and photolytic mechanisms, depending on the environmental conditions they are exposed to [3]. Chlorophenols are one of their main transformation products (TPs) and these can be more toxic than the parent product [4,5,6].…”

“…Several methods have been developed to detect in water the parent phenoxyacetic acid herbicides including 2,4-D, bentazone, bromoxynil, dicamba, triclopyr, and mecoprop [3,15,16,17,18,19,20,21]. In addition, methods have been developed to determine phenoxyacetic acid herbicide TPs such as TCP, 4C2MP and 2,4-dichlorophenol (DCP) in water [15,16,17,22].…”

Molecularly Imprinted Polymers with Enhanced Selectivity Based on 4-(Aminomethyl)pyridine-Functionalized Poly(2-oxazoline)s for Detecting Hazardous Herbicide Contaminants

“…This result means that the proposed method allows rapid detection of any 2,4,5-T concentrations that exceed the admissible limits. Moreover, the obtained method has a broader linearity than liquid chromatography coupled to electrospray ionization (ESI) tandem mass spectrometry used for determination of acid herbicides from water samples …”

Green P(AAm-co-DADMAC) Copolymeric Material as Catalyst for Synthesis of Potential Phytohormones of Phenylazophenoxy-acetic Acids by Phase Transfer

“…Commercially, phenoxyacetic acid derivatives are widely used as important herbicides due to their low price and water solubility. The compounds are applied in agriculture and recreational areas, in grain farms against broadleaf weeds, in parks, on pastures, on golf courses and lawns [11,12]. Poly(acrylamide-co-diallyldimethylammonium chloride) or P(AAm-co-DADMAC), also named poly- quaternium-7 copolymer, is a cationic polymer with pyrrolidimium structure.…”