WHS MatLab Mass Spec Demo

Data file for Mass Spec Activity and Program

Updated 08/12/04

The following data should be saved in a file labeled "atom.dat". Numbers were obtained from the 199# edition of the CRC Handbook of Chemistry and Physics. When a mass value wasn't available, the mass number was used. More data points can be added to this file. There is no limit in the program to the size of the data file.

Column 1 = atomic number

Column 2 = mass number

Column 3 = isotopic mass

Column 4 = natural percent abundance

1   1 	 1.007825 	 99.985
1   2 	 2.0140 	  0.015
2   3 	 3.01603 	  0.00013
2   4 	 4.00260 	 99.99987
3   6 	 6.01512 	 75
3   7 	 7.016 		 25
4   9 	 9.01218 	100
5  10 	10.0129 	 20
5  11 	11.00931 	 80
6  12 	12 		 98.89
6  13 	13.00335 	  1.11
7  14 	14.00307 	 99.64
7  15 	15.00011 	  0.36
8  16 	15.99491 	 99.76
8  17 	17  		  0.04
8  18 	18 		  0.2
9  19 	18.9984 	100
10 20 	19.99244 	 90.51
10 21 	20.99395 	  0.27
10 22 	21.99138 	  9.22
11 23 	22.9898 	100
12 24 	23.98504 	 78.99
12 25 	24.98584 	 10
12 26 	25.98259 	 11.01
13 27 	26.98153 	100
14 28 	27.97693 	 92.23
14 29 	28.97649 	  4.67
14 30 	29.97376 	  3.10
15 31 	30.97376 	100
16 32 	31.97207 	 95
16 33 	32.97146 	  0.76
16 34 	33.96786 	  4.22
16 36 	35.96709 	  0.02
17 35 	34.96885 	 75.77
17 37 	36.967 		 24.23
18 36 	35.96755 	  0.34
18 38 	37.96272 	  0.07
18 40 	39.96 		 99.59
19 39 	38.96371 	 93.26
19 40 	39.964 		  0.01
19 41 	40.96 		  6.73
20 40 	39.96259 	 96.941
20 42 	41.95863 	  0.647
20 43 	42.95878 	  0.135
20 44   43.95549 	  2.086
20 46	45.9537 	  0.004
20 48 	47.9524 	  0.187
21 45 	44.95592 	100
22 46 	45.95263 	  8.0
22 47 	46.9518 	  7.5
22 48 	47.98 		 73.7
22 49 	48.94787 	  5.5
22 50 	49.9448 	  5.3
23 50 	49.9472 	  0.25
23 51 	50.9440 	 99.75
24 50 	49.9461 	  4.35
24 52 	51.9405   	 83.79
24 53 	52.9407 	  9.50
24 54 	53.9389 	  2.36
25 55 	54.9380 	100
26 54 	53.9396 	  5.8
26 56 	55.9349 	 91.8
26 57 	56.9354 	  2.1
26 58 	57.9333 	  0.3
27 59 	58.9332 	100
28 58 	57.9353 	 68.27
28 60   58.9302 	 26.10
28 61 	60.9310 	  1.13
28 62 	61.9283 	  3.59
28 64 	63.9280 	  0.91
29 63 	62.9296 	 69.2
29 65 	64.9278 	 30.8
30 64 	63.9291 	 48.6
30 66 	65.9260 	 27.9
30 67 	66.9721 	  4.1
30 68 	67.9249 	 18.8
30 70 	69.9253 	  0.6
31 69 	68.9257 	 60
31 71 	70.9249 	 40
32 70 	69.9243 	 20.5
32 72 	71.9217 	 27.4
32 73 	72.9234 	  7.8
32 74 	73.9219 	 36.5
32 76 	75.9214 	  7.8
33 75 	74.9261 	100
34 74 	73.9225 	  0.9
34 76 	75.9192 	  9.0
34 77 	76.9199 	  7.6
34 78 	77.9173 	 23.5
34 80 	79.9165 	 49.8
34 82 	81.9167 	  9.2
35 79 	78.9183 	 50.69
35 81 	80.9163 	 49.31
36 78 	77.9204 	  0.35
36 80 	79.9164 	  2.25
36 82 	81.9135 	 11.6
36 83 	83 		 11.5
36 84 	84 	 	 57
36 86 	86 		 17.3