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Calibration Data for Analysts

This document contains calibration data for various gas and water analytes including nitrogen dioxide, sulfate, phosphate, fluoride, and sulfur dioxide. Graphs were generated from calibration standards and show a linear relationship between concentration and absorbance. The slope, intercept, and R-squared values are reported for each calibration curve.

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Kushal Sharma
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158 views7 pages

Calibration Data for Analysts

This document contains calibration data for various gas and water analytes including nitrogen dioxide, sulfate, phosphate, fluoride, and sulfur dioxide. Graphs were generated from calibration standards and show a linear relationship between concentration and absorbance. The slope, intercept, and R-squared values are reported for each calibration curve.

Uploaded by

Kushal Sharma
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as XLSX, PDF, TXT or read online on Scribd
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SHREYA REALTY PRIVATE LIMITED

Calibration: Nitrogen Dioxide in Ambient Air


Done on; 4/5/2015 procedure:
Next due on: 5/4/2015
con. Abs. graph factor
0 0
1 0.018 55.55555555556
2 0.039 51.28205128205
3 0.06 50
4 0.081 49.38271604938
5 0.112 44.64285714286
slope 0.022
graph factor 45.45454545455

calibration graph for


NO2 in ambient air
0.12

0.1 f(x) = 0.022 x − 0.003333333333333


R² = 0.992578125

0.08
absorbance

0.06

0.04

0.02

0
0 1 2 3 4 5 6
concentration µg/m3

graph factor 45.45455


1 0.018 55.55556
2 0.039 51.28205
3 0.06 50
4 0.081 49.38272
5 0.112 44.64286
slope 0.023

43.47826
SHREYA REALTY PRIVATE LIMITED
Calibration: Sulphate in water
Done on; 10/15/2015 procedure:
Next due on: 11/14/2015
con. Abs. graph factor
0 0
5 0.051 98.03921568627
10 0.101 99.0099009901
15 0.156 96.15384615385
20 0.204 98.03921568627

slope 0.01026
graph factor 97.46588693957

calibration graph for


SO4 in water
0.25

0.2 f(x) = 0.01026 x − 0.0002


R² = 0.999684712746722

0.15
absorbance

0.1

0.05

0
0 5 10 15 20 25
concentration µg/m3
SHREYA REALTY PRIVATE LIMITED
Calibration: Phosphate in water
Done on; 10/16/2015 procedure:
Next due on: 11/15/2015
con. Abs. graph factor
0 0
0.05 0.051 0.980392156863
0.1 0.084 1.190476190476
0.2 0.171 1.169590643275
0.5 0.349 1.432664756447

slope 0.685443037975
graph factor 1.45891043398

calibration graph for


PO4 in water
0.4

0.35 f(x) = 0.685443037974683 x + 0.014474683544304


R² = 0.991180615438596
0.3

0.25
absorbance

0.2

0.15

0.1

0.05

0
0 0.1 0.2 0.3 0.4 0.5 0.6
concentration µg/m3
SHREYA REALTY PRIVATE LIMITED
Calibration: Fluoride in water
Done on; 10/17/2015 procedure:
Next due on: 11/16/2015
con. Abs. graph factor
0 0
0.2 0.027 7.407407407407
0.5 0.067 7.462686567164
1 0.129 7.751937984496

slope 0.128854625551
graph factor 7.760683760684

calibration graph for


F- in water
0.14

f(x) = 0.128854625550661 x + 0.000986784140969


0.12 R² = 0.999548571182228

0.1

0.08
absorbance

0.06

0.04

0.02

0
0 0.2 0.4 0.6 0.8 1 1.2
concentration µg/m3
0.00204

0.015912

0.052
0.403413
SHREYA REALTY PRIVATE LIMITED
Calibration: Sulphure Dioxide in Ambient Air
Done on; 4/5/2015 procedure:
Next due on: 5/4/2015
con. Abs. graph factor
0 0
0.5 0.027 18.51851851852 3.66 135.5556
1 0.048 20.83333333333 7.32 152.5
1.5 0.075 20 10.98 146.4
2 0.096 20.83333333333 14.64 152.5
2.5 0.115 21.73913043478 18.3 159.1304
slope 0.046228571429
graph factor 21.63164400494

calibration graph for


SO2 in ambient air
0.14

0.12
f(x) = 0.046228571428572 x + 0.002380952380952
R² = 0.996896760943462
0.1

0.08
absorbance

0.06

0.04

0.02

0
0 0.5 1 1.5 2 2.5 3
concentration µg/m3

graph factor 45.45455

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