Results Table 1: Hill Reaction in NaCl Solutions (A600) Time (second) Change in Absorbance at 600nm Tube1 Blank Tube 2

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Results
Table 1: Hill Reaction in NaCl Solutions (A600)
Time (second)
Change in Absorbance at 600nm
Tube1 Blank
Tube 2 Control
Tube 3 1% NaCl Solution
Tube 4 2.5% NaCl Solution
Tube 5 5% NaCl Solution
Tube 6 10% NaCl Solution
0
-0.041
0.328
0.273
0.355
0.345
0.396
10
-0.113
0.246
0.171
0.225
0.228
0.271
20
-0.186
0.154
0.061
0.11
0.148
0.134
30
-0.25
0.095
-0.021
-0.006
0.067
0.092
40
-0.307
0.024
-0.095
-0.068
0.084
0.014
50
-0.366
-0.034
-0.153
-0.115
-0.053
-0.044
60
-0.408
-0.084
-0.214
-0.171
-0.086
-0.092
This is the table in our hill reaction lab. DCIP, spinach,
buffer and salt is used. the results show blank should have
been zero but all the values are negative. Tube 3 through 6
as NaCl concentration increased absorbance decreased. But is
it not. Can you please write a conclusion and errors based on
the data?