Persistent behavior problems canaffect educational attainment, proper social development,employment, and the likelihood of criminality.The causes of childrenâs mental health problems arevaried and complex and include genetic makeup, childpoverty, maternal depression, and poor or abusivecare.
Paper chromatography is a technique for separating and identifying mixtures that are (or can be) coloured. It has been largely replaced by thin layer chromatography, but is still a powerful teaching tool. Double-way paper chromatography, also called 'two-dimensional chromatography', uses two solvents and rotates the paper 90Â° in between.
Definition of CHROMATOGRAPHY. : a process in which a chemical mixture carried by a liquid or gas is separated into components as a result of differential distribution of the solutes as they flow around or over a stationary liquid or solid phase.â chroÂ·matoÂ·graphÂ·ic \krÅ-Ëma-tÉ-Ëgra-fik, krÉ-\ adjective.efinition of CHROMATOGRAPHY. : a process in which a chemical mixture carried by a liquid or gas is separated into components as a result of differential distribution of the solutes as they flow around or over a stationary liquid or solid phase. â chroÂ·matoÂ·graphÂ·ic \krÅ-Ëma-tÉ-Ëgra-fik, krÉ-\ adjective.