This application demonstrates the suitability of the Ascentis C18 for the analysis of the herbicide triazines simazine, cyanazine, and atrazine. An Ascentis C18, 15 cm x 4.6 mm I.D., 5 μm particles was used under isocratic mobile phase conditoins (70:30 water:acetonitrile) for the separation. All samples where diluted to 50 μg/mL, in 70:30 water:acetonitrile mobile phase, and 10 μL injections where used. Flow rate was 2.0 mL/min at 35oC. Detection was UV at 214 nm.
Corn Production in the Bowen Food Basin - Case Study
In Bowen, Queensland, in 2010, Hibrix was compared with a high NPK mineral fertiliser program for the production of maize cv. Hycorn 675IT on an alluvial sandy loam soil irrigated via sub-surface drip tape. At commercial harvest, cobs from 20 randomly selected plants per plot from were harvested, weighed and the length, girth at the cob base and length of tip not filled with kernels was measured. The grain was removed from each cob and weighed. A subsample of 100 grains was selected from the grain from each cob...
Why are certain herbicides banned?
Herbicides, also known as weedkillers, are chemical substances used to control and kill unwanted plants (weeds), leaving the desired plants unharmed. While these products are very useful for farmers, they are not always safe. In fact, many herbicides that were in common use around the world a few years ago are slowly being banned. In this blog post, we will look at a few herbicides that are used or have been used in Australia and some of the risks they posed that led to them being banned or reviewed for safety...
Relationship between biochars’ porosity and adsorption of three neutral herbicides from water
The porous biochars have exhibited good adsorption to many organic pollutants, but the relationship between biochars’ porosity and their adsorption capacity is not clear at the moment. In this work, six biochars were produced from different feedstocks and under different pyrolysis conditions, and used for adsorption of three neutral herbicides from water. The results demonstrated that the adsorption capacity was dominated by the mesopore (1.7–50 nm) area of biochars, instead of their total surface area, according...
Fenton's treatment of actual agriculture runoff water containing herbicides
This research was to study the efficiency of the Fenton's treatment process for the removal of three herbicides, namely 2,4-dichlorophenoxy acetic acid (2,4-D), ametryn and dicamba from the sugarcane field runoff water. The treatment process was designed with the Taguchi approach by varying the four factors such as H2O2/COD (1–3.5), H2O2/Fe2+ (5–50), pH (2–5) and reaction time (30–240 min) as independent variables. Influence of these parameters on chemical oxygen demand (COD), ametryn, dicamba and 2,4-D removal...
Maximising herbicide efficiency - Case Study
The most important component in achieving an effective and efficient spray solution will always be the water source, so in hard water areas, using a good quality water conditioner is essential to prevent chemical breakdown and maximise herbicide performance. Around the country water can range from soft to hard and its pH can also vary depending on location. From Yorkshire down to the south coast the eastern half of England is predominantly a naturally hard water area as many will know with scale deposits found...