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The Kastle meyer test
Moderators: AmyCowen, kgudger, MadelineB, Moderators
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deleted-297271
- Posts: 5
- Joined: Fri Sep 04, 2015 9:04 am
- Occupation: "Student: 12th grader
- Project Question: what happens to the blood from the Kaslte-Meyer test during the crime scene and after? And do people find any fake blood during the crime scene?
- Project Due Date: 03/15/16
- Project Status: I am conducting my research
The Kastle meyer test
During the kastle meyer test when we use the blood strips why does it change color, also what type of chemical are in the strip that cause to react to a different color?
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deleted-288920
- Former Expert
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Re: The Kastle meyer test
Hello!
That is a great question. Have you checked out the page on science buddies called Crime Scene Chemistry? You can find it here https://www.sciencebuddies.org/science- ... background. It provides some background as to how the Kastle meyer test works.
In brief, the test uses the iron in hemoglobin (a component of red blood cells). There is a reaction which causes the oxidation of phenolphthalin to phenolphthalein. Phenolphthalin is the chemical in the Kastle meyer test and normally has no color, but when blood and hydrogen peroxide are there the phenolphthalin changes to phenolphthalein, resulting in the pink color.
Are you doing some research on this for your science project?
~Nikki
That is a great question. Have you checked out the page on science buddies called Crime Scene Chemistry? You can find it here https://www.sciencebuddies.org/science- ... background. It provides some background as to how the Kastle meyer test works.
In brief, the test uses the iron in hemoglobin (a component of red blood cells). There is a reaction which causes the oxidation of phenolphthalin to phenolphthalein. Phenolphthalin is the chemical in the Kastle meyer test and normally has no color, but when blood and hydrogen peroxide are there the phenolphthalin changes to phenolphthalein, resulting in the pink color.
Are you doing some research on this for your science project?
~Nikki
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deleted-297271
- Posts: 5
- Joined: Fri Sep 04, 2015 9:04 am
- Occupation: "Student: 12th grader
- Project Question: what happens to the blood from the Kaslte-Meyer test during the crime scene and after? And do people find any fake blood during the crime scene?
- Project Due Date: 03/15/16
- Project Status: I am conducting my research
Re: The Kastle meyer test
Thank you so much. Yes this is my project for science fair.
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deleted-297271
- Posts: 5
- Joined: Fri Sep 04, 2015 9:04 am
- Occupation: "Student: 12th grader
- Project Question: what happens to the blood from the Kaslte-Meyer test during the crime scene and after? And do people find any fake blood during the crime scene?
- Project Due Date: 03/15/16
- Project Status: I am conducting my research
Kastle meyer testing ?
How does the kastle meyer test effect people and does it really effect hurt people during the testing of the blood?
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deleted-71536
- Former Expert
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Re: Kastle meyer testing ?
Hi there,
The Kastle-Meyer test is a forensic test that is usually used to detect whether blood is present at a crime scene, for example. This test is not usually performed on a person, but rather on swabs from places around scenes being investigated.
Were you planning to do an experiment involving the Kastle-Meyer test?
Heather
The Kastle-Meyer test is a forensic test that is usually used to detect whether blood is present at a crime scene, for example. This test is not usually performed on a person, but rather on swabs from places around scenes being investigated.
Were you planning to do an experiment involving the Kastle-Meyer test?
Heather
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deleted-297271
- Posts: 5
- Joined: Fri Sep 04, 2015 9:04 am
- Occupation: "Student: 12th grader
- Project Question: what happens to the blood from the Kaslte-Meyer test during the crime scene and after? And do people find any fake blood during the crime scene?
- Project Due Date: 03/15/16
- Project Status: I am conducting my research
Re: The Kastle meyer test
Ya i know that the Kaslte Meyer test is use during the a crime scene. And yes i am Planning to do an Experiment involving The Kastle Meyer test.
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deleted-71536
- Former Expert
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- Occupation: Professor
- Project Question: How do different animals adapt to their environment?
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Re: The Kastle meyer test
Great! What did you have in mind? Let us know if you need feedback on your experimental design.
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deleted-297271
- Posts: 5
- Joined: Fri Sep 04, 2015 9:04 am
- Occupation: "Student: 12th grader
- Project Question: what happens to the blood from the Kaslte-Meyer test during the crime scene and after? And do people find any fake blood during the crime scene?
- Project Due Date: 03/15/16
- Project Status: I am conducting my research
Re: The Kastle meyer test
How can you tell if its blood or not without using the Kastle Meyer test? will any one be able to know or just the people who test can tell cause they may see and test almost everyday most likely?
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deleted-71536
- Former Expert
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Re: The Kastle meyer test
Hi there,
Another way to test whether something is blood is to view the sample under a powerful microscope. However, the Kastle Meyer test is usually used in situations for which it is difficult to tell whether it is blood - for example, there are very trace amounts which may or may not be visible to the naked eye.
The test reacts with the hemoglobin (iron-containing compound) in blood via a chemical reaction. So you do not have to see the blood to test for it.
I hope that answers your question.
Heather
Another way to test whether something is blood is to view the sample under a powerful microscope. However, the Kastle Meyer test is usually used in situations for which it is difficult to tell whether it is blood - for example, there are very trace amounts which may or may not be visible to the naked eye.
The test reacts with the hemoglobin (iron-containing compound) in blood via a chemical reaction. So you do not have to see the blood to test for it.
I hope that answers your question.
Heather