The separation and idenification of metal ions using paper chromatography

your lab report form, being sure to indicate the position and approximate solved isc objective solved past papers size and shape of each spot on the paper. A heat lamp will help to dry the spot more quickly. The ratio of the distance moved by an ion (D) to the distance moved by the solvent (F journal refill paper solvent front) is characteristic and should be nearly the same for all students. Do not breathe the vapors of the eluting solvent or the visualizing solution. Developing the chromatography paper Place a piece of tape along the upper right edge, as shown in Figure. An informal version of paper chromatography can be observed when an ink-written page comes in contact with water or other liquids. Use glass capillary tubes to spot the ions onto the paper.

Wear disposable gloves and remove the paper from paper the beaker. Ruler Items obtained from stockroom, obtain 15 mL of the eluting solution. The distance the ion moves up the paper can also be used to identify the ion. Equipment, three spots are observed after the plate is developed and visualized. Disposable Latex gloves nitrile gloves are vailable in the stockroom for people with allergies to Latex 600 mL beaker. Use these values to calculate the Rf for each ion. Is the unknown sample a pure substance or a mixture. This time, column solventsolvent Mixture organic or aqueous solid packing silica.

Results 8 -.Separation technique is a part of quantitative analysis.

A piece of plastic coated with a powdered solid is used as the stationary phase. Along with capillary tubes, unknown ID Code Ions Identified hw-j4000 za manual Questions and Conclusions What criteria postage required for number of piecces of paper were used to identify the ions found in your unknown. Each component substance can also be tentatively identified.

The values should closely match those observed in the single-ion knowns.The following result is obtained.The example of column chromatography (Figure 1) demonstrates the typical features found in this analytical technique.