What is residue chemistry?

Chemical residues are the traces of a chemical or its breakdown products that remain in or on treated produce. Chemical residues can occur by directly treating produce with a chemical product as well as from exposure to chemicals (off-target drift, persistent chemicals in soil).

What is residue and example?

Residue is a small amount of something that is left behind. When you peel off a tag but there is some sticky stuff left, the sticky stuff is an example of residue. noun. Whatever remains after something else has been removed. noun.

What is residue in chemistry class 11?

In chemistry, residue is the material remaining after distillation, evaporation, or filtration. It is undesirable byproduct.

What is residue test in chemistry?

Residue chemistry studies are performed to quantify and/or identify any substances or metabolites that remain in edible plant or animal tissue following the administration of an agrochemical or veterinary pharmaceutical as part of the food production process.

What is residue type?

In chemistry residue is whatever remains or acts as a contaminant after a given class of events. Residue may be the material remaining after a process of preparation, separation, or purification, such as distillation, evaporation, or filtration. It may also denote the undesired by-products of a chemical reaction.

What is residue answer?

Definition of residue : something that remains after a part is taken, separated, or designated or after the completion of a process : remnant, remainder: such as. a : the part of a testator’s estate remaining after the satisfaction of all debts, charges, allowances, and previous devises and bequests.

What is amino acid residue?

Definition. When two or more amino acids combine to form a peptide, the elements of water are removed, and what remains of each amino acid is called an amino-acid residue.

What is residue analysis?

Residue analysis, as used in archaeology, is a generic term used to describe the characterisation of traces of organic products from the past. For more detailed overviews of the occurrence and analysis of specific biomolecules in archaeology, readers are directed to Evershed et al.

What is a residue in biochemistry?

Residue (chemistry) In chemistry residue is whatever remains or acts as a contaminant after a given class of events. Residue may be the material remaining after a process of preparation, separation, or purification, such as distillation, evaporation, or filtration.

What is a drug residue?

Residue is a term used by state laboratories to define a test result where there is the presence of illegal substances without sufficient quantities to determine weight, or volume. This is important because many drug crimes are enhanced or defined by the quantity of illegal substances possessed by the person charged.

What is protein residue?

In biochemistry and molecular biology, a residue refers to a specific monomer within the polymeric chain of a polysaccharide, protein or nucleic acid. One might say, “This protein consists of 118 amino acid residues” or “The histidine residue is considered to be basic because it contains an imidazole ring.”.