dc.contributor.author |
Finkelde, I. |
en |
dc.contributor.author |
Waller, R. R. |
en |
dc.date.accessioned |
2021-09-17T12:59:55Z |
|
dc.date.available |
2021-09-17T12:59:55Z |
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dc.date.issued |
2020 |
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dc.identifier.citation |
Finkelde, I. and Waller, R. R. 2020. "<a href="https://meridian.allenpress.com/collection-forum/article/34/1/32/469495/Comparing-Methods-of-Determining-Formalin; https://meridian.allenpress.com/collection-forum/article-pdf/34/1/32/2888236/i0831-4985-34-1-32.pdf">Comparing Methods of Determining Formalin Concentration in Fluid Preservatives</a>." <em>Collection Forum</em> 34 (1):32-52. <a href="https://doi.org/10.14351/0831-4985-34.1.32">https://doi.org/10.14351/0831-4985-34.1.32</a> |
en |
dc.identifier.issn |
0831-4985 |
|
dc.identifier.uri |
https://hdl.handle.net/10088/111351 |
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dc.description.abstract |
Formalin (3.7% weight/weight w/w], 4% weight/volume w/v] aqueous formaldehyde) is commonly used as a fixative to prevent postmortem changes in the tissues of a specimen. The specimen is then either maintained in formalin or transferred to another fluid preservative, such as ethanol or isopropanol, for long-term preservation. Residual formalin often remains in the preservation fluid. As formaldehyde is a known carcinogen, it is important to know the concentration present in preservation fluids. A titration method has been developed to determine formalin concentration in fluid preservatives. It utilizes sodium sulfite to react with formaldehyde in solution. An adjustable, repeating pipette and a digital titrator allow for the rapid determination of formalin concentrations in small samples (<1 ml). This method of titration is compared with three commercially available methods of determining formaldehyde and formalin concentration: two brands of formaldehyde test strips, Quantofix® (Machery-Nagel GmbH) and MQuant® (EMD Millipore Corp), and a drop count titration test kit (Hach® formaldehyde test kit, model FM-1). A comparison and evaluation are made on the effectiveness of each method in determining the concentration of formalin in preservation fluids. |
en |
dc.relation.ispartof |
Collection Forum |
en |
dc.title |
Comparing Methods of Determining Formalin Concentration in Fluid Preservatives |
en |
dc.type |
Journal Article |
en |
dc.identifier.srbnumber |
160489 |
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dc.identifier.doi |
10.14351/0831-4985-34.1.32 |
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rft.jtitle |
Collection Forum |
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rft.volume |
34 |
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rft.issue |
1 |
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rft.spage |
32 |
|
rft.epage |
52 |
|
dc.description.SIUnit |
NMNH |
en |
dc.description.SIUnit |
NH-Other |
en |
dc.citation.spage |
32 |
|
dc.citation.epage |
52 |
|
dc.relation.url |
https://meridian.allenpress.com/collection-forum/article/34/1/32/469495/Comparing-Methods-of-Determining-Formalin; https://meridian.allenpress.com/collection-forum/article-pdf/34/1/32/2888236/i0831-4985-34-1-32.pdf |
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