Choice of Carrier Liquid

The solvents listed in Table 3.5 are studied because they are used extensively in A AS analysis and were applied to ICP-OES. Demonstrating the effects of different solvents on signal response and overall behaviour on the ICP-OES were studied here the long term use of these solvents would not be viable in a routine situation because of the unstable plasma, etc. The major problem with some solvents is that the rapid 

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The choice of carrier liquid is primarily based on the suspension stability for colloids or solvent goodness for macromolecule solutions. Moreover, surface-charged colloidal particles are also sensitive to ionic strength and addition of surfactants. 

In a first representative t5q)e of biphasic inks, the attractive particles are hydrophobic colloids, the repulsive particles are hydrophilic colloids and the carrier liquid is hydrophobic. More genericaUy, depending on the choice of carrier liquid, a first colloid with a high interfacial energy with the carrier Hquid will yield attractive particles, whereas a second colloid with a low interfacial energy with the carrier liquid will give rise to repulsive particles. Thus, mixing the two colloids and the carrier liquid will yield a biphasic ink. If desired, a carrier liquid whose hydrophobicity is dependent on the temperature or other variables may be chosen. The relative hydrophobicity of the particles may also vary with the temperature or other variables. 

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