CSI: Ink Chromatography & 3 mini labs

CSI: Chromatography of individual inks or identifying multiple inks

CSI Experiment: Ken, Barbie, and Skipper (Barbie’s little sister.)

KEN IS MISSING!!!!! ,[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object]

Suspect #1: Barbie ,[object Object],[object Object],[object Object]

Suspect #2: Skipper ,[object Object],[object Object],[object Object]

YOUR MATERIALS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

INK CHROMATOGRAPHY ,[object Object],Ink Dot from pen A Label paper “Pen A” Pen A

You should now have samples from all 3 pens like below. Pen A Pen B Pen C

Chromatography ,[object Object]

Notice that the brands on the pens are all different. ,[object Object],[object Object],[object Object]

Attach the paper clips through the points at the bottom. Pen A Pen B Pen C

Time to run the pencil through the holes. Pen A Pen B Pen C

Alright! Last step! Hang the paperclips and very bottom of the paper into the water. Make sure the water does not touch the ink directly! Pen A Pen B Pen C

Create an Experiment to determine who wrote the note… ,[object Object],[object Object],[object Object],[object Object]

Upon further investigation… ,[object Object],[object Object],[object Object]

LAB #2…Can CSI specialists tell if a document is altered by someone? ,[object Object],[object Object],[object Object]

Lab#2: The suspicious B - ,[object Object],[object Object],[object Object],[object Object]

How can Billy’s mom determine if that grade is accurate or has been altered? ,[object Object],[object Object],[object Object],[object Object],[object Object]

YES! Billy totally changed the D- to a B-. See the before and after? Testing of the B- should show different inks than the message above “Needs more work”

JUST FOR FUN! ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],USE YOUR KNOWLEDGE OF CHROMATOGRAPHY TO TEST THESE COLORS ON SEPARATE STRIPS AFTER YOUR PREDICTIONS. YOU WILL HAVE TO MAKE YOUR OWN STRIPS THIS TIME!

CSI: Ink Chromatography & 3 mini labs

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CSI: Ink Chromatography & 3 mini labs