Spectroscopy in a Suitcase - Royal Society of Chemistry
Spectroscopy in a Suitcase - Royal Society of Chemistry
Spectroscopy in a Suitcase - Royal Society of Chemistry
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ULTRAVIOLET - VISIBLE SPECTROSCOPY (UV)<br />
EXERCISE 2 - REACTION OF BLUE FOOD DYE WITH BLEACH 6<br />
RESULTS - RAW DATA<br />
Group 1 Group 2<br />
TIME(s) ABS LN(ABS) 1/(ABS)<br />
15 0.495 -0.7032 2.0202<br />
30 0.424 -0.85802 2.35849<br />
45 0.371 -0.99155 2.69542<br />
60 0.328 -1.11474 3.04878<br />
75 0.286 -1.25176 3.4965<br />
90 0.251 -1.3823 3.98406<br />
105 0.218 -1.52326 4.58716<br />
120 0.191 -1.65548 5.2356<br />
135 0.17 -1.77196 5.88235<br />
TIME(s) ABS LN(ABS) 1/(ABS)<br />
15 0.348 -1.05555 2.87356<br />
30 0.298 -1.21066 3.3557<br />
45 0.264 -1.33181 3.78788<br />
60 0.231 -1.46534 4.329<br />
75 0.201 -1.60445 4.97512<br />
90 0.179 -1.72037 5.58659<br />
105 0.157 -1.85151 6.36943<br />
120 0.136 -1.9951 7.35294<br />
135 0.119 -2.12863 8.40336<br />
0.50 Group 1<br />
0.45<br />
0.35<br />
Group 2<br />
0.40<br />
0.30<br />
Absorbance<br />
0.35<br />
0.30<br />
0.25<br />
Absorbance<br />
0.25<br />
0.20<br />
0.20<br />
0.15<br />
0.15<br />
0 20 40 60 80 100 120 140<br />
Time (seconds)<br />
0.10<br />
0 20 40 60 80 100 120 140<br />
Time (seconds)<br />
-0.6<br />
Group 1<br />
-1.0<br />
Group 2<br />
-0.8<br />
-1.2<br />
-1.0<br />
-1.4<br />
ln(Abs)<br />
-1.2<br />
-1.4<br />
[22/08/2008 11:34 "/Graph1" (2454700)]<br />
L<strong>in</strong>ear Regression for Group1_lnAbs:<br />
Y = A + B * X<br />
ln(Abs)<br />
-1.6<br />
-1.8<br />
[22/08/2008 11:39 "/Graph1" (2454700)]<br />
L<strong>in</strong>ear Regression for Group2_lnAbs:<br />
Y = A + B * X<br />
-1.6<br />
Parameter Value Error<br />
------------------------------------------------------------<br />
A -0.58372 0.00628<br />
B -0.00889 7.44321E-5<br />
------------------------------------------------------------<br />
-2.0<br />
Parameter Value Error<br />
------------------------------------------------------------<br />
A -0.93426 0.00612<br />
B -0.00882 7.24821E-5<br />
------------------------------------------------------------<br />
-1.8<br />
R SD N P<br />
------------------------------------------------------------<br />
-0.99975 0.00865 9
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