Standard method for identifying species in solid mixtures

In summary, to precipitate HAP, you need to mix solutions of K2HPO4 and CaCl2, and adjust the pH to 9~9.5.
  • #1
Dong Aleta
29
0
I want to know of any standard method for identifying (and possibly quantifying) the species contained in a solid mixture sample. Thanks in advance!
 
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  • #2
Cake mixes? Or, actual/real mixtures?
 
  • #3
Dong Aleta said:
I want to know of any standard method for identifying (and possibly quantifying) the species contained in a solid mixture sample. Thanks in advance!

You are SOL. Unless you know a whole lot about your sample. Qualitative identification comes first, then quantitation. Is your sample organic or inorganic or both? What functional groups does it contain. You need a slew of data. You need melt points, boiling points (if applicable). You need solubilities. You need densities. You need spectroscopic data, FTIR, NMR, MS, UV-Vis. You might some form of metals analysis, Flame AA, ICP, XRF, PIXE, SEM.

You need to separate individual components and gather all the data on the individual compounds. Reverse engineering complex mixtures is quite a challenge.
 
  • #4
Kevin McHugh said:
You are SOL. Unless you know a whole lot about your sample. Qualitative identification comes first, then quantitation. Is your sample organic or inorganic or both? What functional groups does it contain. You need a slew of data. You need melt points, boiling points (if applicable). You need solubilities. You need densities. You need spectroscopic data, FTIR, NMR, MS, UV-Vis. You might some form of metals analysis, Flame AA, ICP, XRF, PIXE, SEM.

You need to separate individual components and gather all the data on the individual compounds. Reverse engineering complex mixtures is quite a challenge.
I apologize for not specifying. I want to precipitate hydroxyapatite (HAP) by mixing two solutions of K2HPO4 and CaCl2 at initial pH 9~9.5. I did some literature review and found out that apparently, we know of other calcium phosphate crystals can precipitate other than HAP. But I want to be able to quantify (if possible) how much HAP was precipitated in the resulting precipitate (after filtration and drying).
 
  • #5
Bystander said:
Cake mixes? Or, actual/real mixtures?
Actually, it's a precipitate after mixing solutions of K2HPO4 and CaCl2, after filtration and drying.
 

1. What is the purpose of the standard method for identifying species in solid mixtures?

The purpose of the standard method for identifying species in solid mixtures is to accurately determine the composition and identity of different species present in a solid mixture. This method is important for various scientific fields such as chemistry, biology, and environmental science.

2. How does the standard method for identifying species in solid mixtures work?

The standard method for identifying species in solid mixtures typically involves several analytical techniques such as chromatography, spectroscopy, and microscopy. These techniques allow for the separation, detection, and characterization of different species in a mixture.

3. What types of solid mixtures can be analyzed using the standard method for identifying species?

The standard method for identifying species can be applied to various types of solid mixtures including powders, granules, fibers, and particles. It can also be used to analyze complex mixtures containing different types of materials such as organic and inorganic compounds.

4. What are the advantages of using the standard method for identifying species in solid mixtures?

The standard method for identifying species in solid mixtures offers several advantages such as high sensitivity, accuracy, and reproducibility. It also allows for the identification of trace amounts of species and can be used to analyze a wide range of sample types.

5. Are there any limitations to the standard method for identifying species in solid mixtures?

Like any analytical method, the standard method for identifying species in solid mixtures has some limitations. It may not be suitable for analyzing very complex mixtures, and it may require specialized equipment and expertise. Additionally, the results may be affected by external factors such as sample preparation and handling.

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