Salvato in:
| Autori principali: | , , , , |
|---|---|
| Natura: | Recurso educativo Open Access |
| Lingua: | en |
| Pubblicazione: |
2009
|
| Soggetti: | |
| Accesso online: | https://eric.ed.gov/?id=EJ838932 |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1867181753721946112 |
|---|---|
| author | Anzivino, Barbara Tilley, Leon J. Ingalls, Laura R. Hall, Adam B. Drugan, John E. |
| author_facet | Anzivino, Barbara Tilley, Leon J. Ingalls, Laura R. Hall, Adam B. Drugan, John E. Anzivino, Barbara Tilley, Leon J. Ingalls, Laura R. Hall, Adam B. Drugan, John E. |
| collection | Education Resources Information Center |
| contents | Got a Match? Ion Extraction GC-MS Characterization of Accelerants Adsorbed in Charcoal Using Negative Pressure Dynamic Headspace Concentration Anzivino, Barbara Tilley, Leon J. Ingalls, Laura R. Hall, Adam B. Drugan, John E. Organic Chemistry Classification Anxiety College Science Undergraduate Study Crime Science Laboratories Laboratory Experiments Spectroscopy Molecular Structure Heat Scientific Principles An undergraduate organic chemistry experiment demonstrating real-life application of GC-MS to arson accelerant identification is described. Students are given the task of comparing a sample recovered from a "crime scene" to that from a "suspect's clothing". Accelerants subjected to different conditions are recovered using a quick and simple negative pressure dynamic headspace method. GC-MS data is acquired. Students apply ion-extraction techniques and spectral library searches in conjunction with mass spectral fragmentation pattern analyses to classify accelerants according to an ignitable liquid classification scheme similar to that used by the American Society for Testing and Materials. After classification, they are asked to make a determination about the degree (or lack thereof) of match between samples and address several critical thinking issues regarding a suspect's possible innocence or guilt. (Contains 8 figures and 2 tables.) |
| format | Recurso educativo Open Access |
| id | eric_EJ838932 |
| institution | ERIC Institute of Education Sciences |
| language | en |
| publishDate | 2009 |
| record_format | eric |
| spellingShingle | Got a Match? Ion Extraction GC-MS Characterization of Accelerants Adsorbed in Charcoal Using Negative Pressure Dynamic Headspace Concentration Anzivino, Barbara Tilley, Leon J. Ingalls, Laura R. Hall, Adam B. Drugan, John E. Organic Chemistry Classification Anxiety College Science Undergraduate Study Crime Science Laboratories Laboratory Experiments Spectroscopy Molecular Structure Heat Scientific Principles Got a Match? Ion Extraction GC-MS Characterization of Accelerants Adsorbed in Charcoal Using Negative Pressure Dynamic Headspace Concentration Anzivino, Barbara Tilley, Leon J. Ingalls, Laura R. Hall, Adam B. Drugan, John E. Organic Chemistry Classification Anxiety College Science Undergraduate Study Crime Science Laboratories Laboratory Experiments Spectroscopy Molecular Structure Heat Scientific Principles An undergraduate organic chemistry experiment demonstrating real-life application of GC-MS to arson accelerant identification is described. Students are given the task of comparing a sample recovered from a "crime scene" to that from a "suspect's clothing". Accelerants subjected to different conditions are recovered using a quick and simple negative pressure dynamic headspace method. GC-MS data is acquired. Students apply ion-extraction techniques and spectral library searches in conjunction with mass spectral fragmentation pattern analyses to classify accelerants according to an ignitable liquid classification scheme similar to that used by the American Society for Testing and Materials. After classification, they are asked to make a determination about the degree (or lack thereof) of match between samples and address several critical thinking issues regarding a suspect's possible innocence or guilt. (Contains 8 figures and 2 tables.) |
| title | Got a Match? Ion Extraction GC-MS Characterization of Accelerants Adsorbed in Charcoal Using Negative Pressure Dynamic Headspace Concentration |
| topic | Organic Chemistry Classification Anxiety College Science Undergraduate Study Crime Science Laboratories Laboratory Experiments Spectroscopy Molecular Structure Heat Scientific Principles |
| url | https://eric.ed.gov/?id=EJ838932 |