User:Moira M. Esson/Notebook/CHEM-581/2012/10/10: Difference between revisions

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==Objectives==
==Objectives==
#Prepare samples for DSC
#Prepare samples for DSC
#Run clay exchange described on [[User:Moira_M._Esson/Notebook/CHEM-581/2012/9/26|2012/9/26]] using Fe<sub>3</sub>O<sub>4</sub>
#Run clay exchange described on [[User:Moira_M._Esson/Notebook/CHEM-581/2012/09/26|2012/09/26]] using Fe<sub>3</sub>O<sub>4</sub>
#Rerun AA for CuSO<sub>4</sub> solutions
#Rerun AA for CuSO<sub>4</sub> solutions
==DSC==
==DSC==
Samples were prepared following the general protocol for DSC preparation described on [[User:Moira_M._Esson/Notebook/CHEM-581/2012/9/07|2012/9/07]]
Samples were prepared following the general protocol for DSC preparation described on [[User:Moira_M._Esson/Notebook/CHEM-581/2012/9/07|2012/9/07]]

Revision as of 07:01, 16 October 2012

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Objectives

  1. Prepare samples for DSC
  2. Run clay exchange described on 2012/09/26 using Fe3O4
  3. Rerun AA for CuSO4 solutions

DSC

Samples were prepared following the general protocol for DSC preparation described on 2012/9/07
DSC Sample Preparation

Sample Name Pan+lid mass(g) Mass sample(g)
PVOH 130,000+[H3PO4]+15%maleic acid 0.04939 0.00281
PVOH 130,000 0.0495 0.00283
PVOH 22,000+[HCl] 0.04933
  • Note:DSC did not have the attached gas and was unable to be used. Prepared samples will be run and the data will be collected when next in the labaratory

Atomic Absorption

  • Solutions run were prepared on 2012/09/21
  • The General Protocol for AA described on 2012/10/05 was used


Atomic Absorption Data from AA wizard:

Cu ' ' ' '
Action Sample ID True Value (ppm) Conc. (ppm) Abs.
AUTOZERO
STD STD 1 1 0.0054
STD STD 2 5 0.0118
STD STD 3 10 0.6531
STD STD 4 20 1.0516
STD STD 5 25 1.1173
STD STD 6 30 1.1773
STD STD 7 40 1.2726
STD STD 8 50 1.3179
UNK1 7.4ppm NaMT 1min 7.5551 0.3993
UNK2 10ppm NaMT 1 min 10.9678 0.4959
UNK3 7.4ppm NaMT 5 min 7.0393 0.3847
UNK4 10ppm NaMT 5 min 10.6639 0.4873
UNK5 7.4ppm NaMt 10 min 4.2696 0.3063
UNK6 10ppm NaMT 10min 7.2478 0.3906
UNK7 7.4ppm Fe3O4 1min 46.4402 1.5
UNK8 10ppm Fe3O4 1 min 44.9883 1.4589
UNK9 7.4ppm Fe3O4 5min 39.7598 1.3109
UNK10 10ppm Fe3O4 5min 43.9567 1.4297
UNK11 7.4ppm Fe3O4 10min 39.841 1.3132
UNK12 10ppm Fe3O4 10min 39.9647 1.3167
UNK13 7.4ppm CEC100% 1min 11.1939 0.5023
UNK14 10ppmCEC100% 1min 16.5283 0.6533
UNK15 7.4ppm CEC100% 5min 9.5123 0.4547
UNK16 10ppm CEC100% 5min 15.4473 0.6227
UNK17 7.4ppm CEC100% 10min 8.4171 0.4237
UNK18 10ppm CEC100% 10min 15.7794 0.6321
UNK19 7.4ppm CEC 50% 1min 10.5191 0.4832
UNK20 10ppm CEC 50% 1min 14.7443 0.6028
UNK21 7.4ppm CEC 50% 5min 9.802 0.4629
UNK22 10ppm CEC 50% 5min 15.3449 0.6198
UNK23 7.4ppm CEC 50% 10min 10.4449 0.4811
UNK24 10ppm CEC 50% 10min 15.0057 0.6102


Calibration Curve

General Notes:

  • The standards used were too high of a concentration. Need to remake CuSO4 standards between 5-20ppm.
  • All Fe3O4 samples need to be reprepared and retested. Solutions were prepared with CuSO4 instead of deionized H2O. Concentrations were inaccurate and calibration curve created was inaccurate
  • AA needs to be run again


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