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What are persistent pesticides?
Persistent pesticides are chemicals that remain in the environment and can accumulate over time in soil, water, and organisms. These pesticides do not easily degrade, which can lead to long-lasting environmental and health impacts. Examples include organochlorine pesticides like DDT and chlordane.
What are pesticides made from?
Pesticides can be made from synthetic chemicals, natural products, or a combination of both. Common synthetic pesticides are derived from chemicals like organophosphates, carbamates, and pyrethroids, while natural pesticides can be sourced from plants (e.g., neem oil) or microbes (e.g., Bacillus thuringiensis).
What is the chemical equation for pesticides?
There isn't a single chemical equation for pesticides, as they can be composed of different active ingredients. Pesticides typically contain chemicals that target specific pests or regulate their growth. Some common types of pesticides include insecticides, herbicides, and fungicides, each with their own unique chemical composition.
What types of pesticides reduce bioaccumulation?
Pesticides that are easily broken down in the environment, have low persistence, volatility, and tendency to accumulate in living organisms are less likely to contribute to bioaccumulation. Examples include microbial pesticides, botanical pesticides, and certain biopesticides that have specific target organisms and low environmental persistence.
How do pesticides contaminate groundwater?
Pesticides can contaminate groundwater when they are applied to fields and leach through the soil into the groundwater. Rainfall or irrigation can help move the pesticides deeper into the ground where they can reach the groundwater. Once in the groundwater, pesticides can persist for a long time and potentially impact drinking water sources.
What is a GCMS?
gas chromatography mass selective detector
Why do you use internal standards in GCMS?
For quantification of unknown analyte
Is LC MS more reliable test for Newborn screening or is it GC MS?
LCMS (actually) LCMS/MS goes the half way for newborn screening. Its then the GCMS which comes for rescue. It clarifies the results given by LCMS and says with accuracy whether it is a positive or a negative case, against what was indicated in the LCMS screening. GCMS is mostly based on urine sample while LCMS needs blood spots. Thats where GCMS already scores a big point above LCMS. Further, GCMS "confirms" a disorder, while LCMS stops at "maybe". GCMS tests for a massive range of disorders while LCMS is limited to a few class of disorders. GCMS is the future of screening, while LCMS is the present of screening.
How do you pass a 10-50 GCMS drug test?
Don't do drugs.
What is elisa cutoff and gcms cutoff?
The absorbance level assumed to be the limit for positive samples
What are importance of chemistry in farmer?
- agrochemistry is an important branch of chemistry - pesticides are chemical products - fertilizers are chemical products - industrial production of many foods including drinks are chemical processes - all foods are analyzed by analytical chemistry methods
Is food better for your health with pesticides or without pesticides?
pesticides kill insects. Pesticides contain carcinogenic ingredients. Pesticides have warning lables that say not to inhale them or make contact with their skin. You do the math.
What carcinogens are in pesticides?
Your moms carcinogens are in pesticides?!?!?!?!?!
Which fungus kills pesticides?
Fungus does not kill pesticides, pesticides (fungicide to be exact) kill fungus.
Pesticides can be grouped according to what?
pesticides can be grouped according to
Can you buy soil that is already analyzed?
I think it is impossible to buy soil that is analyzed. otherwise analyzed soil may be very exspensive. I think so
Pesticides are helpful for increasing the food supply . which use of pesticides is most dangerous for humans?
spreading pesticides with airplanes
