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UCLA CHEM 30AL - Soil analysis Report

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Soil Analysis Project Post-lab Report FormatCHEMISTRY 30AL SUMMER 2005 SOIL ANALYSIS PROJECT- POST-LAB REPORT GUIDELINE This is a GROUP report. Refer to the DUE DATES Listed on the Lab Schedule Your group report should address the following items. The report must be in a well written format. You MUST list ALL the references that you use including references for any spectra that you find. Attached ALL the experimental spectra and the literature spectra to your report. Your group may submit a typewritten post-lab report for the soil project. However, DO NOT “CUT & PASTE” the report among the group members. Your soil report MUST consist of UNIFORM FONTS AND STYLE. The written content of the report should be PRINTED from a SINGLE computer and printer. Remember that during the process of writing this report will also provide you a chance to review and understand the materials that you have learned so far in 30AL and 20L. In other words, understanding the logics and theories of this report will help you prepare for the final exam. Each of you must understand the chemistry for both the organic part and the inorganic part of the project especially for the final exam. Soil Analysis Project Post-lab Report Format (I) List the names and responsibilities of all the group members in writing the soil report and during the soil experiment. (II) The soil unknown number (III) Abstract Outline the goal(s) of the soil project. Summarize all results as well as outline all the techniques (including identifications, purification, isolation and quantification) that you used that allow you to achieve such goal(s).CHEMISTRY 30AL SUMMER 2005 SOIL ANALYSIS PROJECT- POST-LAB REPORT GUIDELINE This is a GROUP report (IV) Design and Discussion of the Experimental Procedures (i) Construct a SIMPLIFIED FLOWCHART as an OVERVIEW for the entire soil project. (ii) On a NEW page, explain the design of the experimental procedures. In the discussions, you must consider how your group reasoned through an analytical scheme for which the detection of each of the compound can be determined both qualitatively and quantitatively (% by mass relative to the total amount of soil in the unknown) in the unknown soil sample. The methods that your group used must be reasonable and give the results desired or results that will lead to other experimental procedures or analytical procedures. (V) RESULTS OF THE QUALITATIVE ANALYSIS Summarize all the qualitative results and gives descriptions of the identification / purification / isolation techniques that were used in the analysis. Explain how your group concludes the identities of the compounds based on the various spectral analyses, TLC results and/or analytical tests. (VI) Results of the QUANTITATIVE analysis (including DATA & ERROR Analysis) (a) Summarize all the quantitative results (b) Logic of quantitative reasoning for each compound (i.e. Data Analysis) Calculate the % by mass relative to the soil for EACH confirmed compound in the unknown. Show ALL your work. (c) Discussions of error and estimation of uncertainty of the answers (Show all your calculations) Note: your previous post-labs in 30AL and 20L will be good sources of references for error analysisCHEMISTRY 30AL SUMMER 2005 SOIL ANALYSIS PROJECT- POST-LAB REPORT GUIDELINE This is a GROUP report (VII) Conclusions (a) Summarize the results (b) Comment on any uncertainties or experimental errors in procedures that may affect the results. (VIII) Experimental & Literature Spectra and Other Supporting Experimental Evidences - For EACH of the ORGANIC compound in your unknown, you MUST provide both the experimental spectra (IR and mass spec.) and the literature spectra as an evidence for identifying the organic compounds. You may also include UV-Vis spectra for your soil compounds. Melting point results (if appropriate) and TLC results should also be included as part of the verification of the identities of the compounds. - For INORGANIC COMPOUNDS, you MUST show evidence from the results of the analytical tests that you did in the project to conclude the identity of the compound. You may also include UV spectra for the inorganic compounds. - Attach ALL the experimental AND literature spectra. Label EACH spectrum clearly and write down the final experimental result(s) that your group concludes from EACH spectrum (i.e. Positive for benzoic acid; positive for camphor etc.). - Attached ALL the ORIGINAL EXPERIMENTAL TLC plates that you did in the project with the report. For EACH TLC plate, write down the COMPONENT(S) OF MOBILE PHASE that was used for the separation as well as the compounds spotted on the plates. Also write down the CONCLUSIONS of the identification based on the TLC results (i.e. naphthalene present; m-nitroaniline absent etc.) You can tape all the ORIGINAL TLC plates on a piece of paper and attached the page to the report. PHOTOCOPIES OF ANY TLC PLATES WILL NOT BE ACCEPTED FOR GRADING OR AS SCIENTIFIC EVIDENCE FOR THE PROJECT.Note: Most of the IR spectra in NIST are sampled in gas phase NOT in condensed phase. The absorption intensity of the signals may vary from what are listed on the IR correlation chart that was given to you during the IR lecture.CHEMISTRY 30AL SUMMER 2005 SOIL ANALYSIS PROJECT- POST-LAB REPORT GUIDELINE This is a GROUP report (IX) References Site ALL the references that you use in this report (including any on-line resources) Make sure you read the Library handouts provided by Marion Peters on how to cite references appropriately. For references using on-line resources, you may print out a copy of the Web page(s) with the URL address listed and


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UCLA CHEM 30AL - Soil analysis Report

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