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White blood cells, or leukocytes are cells of the immune system involved in defending the body against both infectious disease and foreign materials. The number of leukocytes in the blood is often an indicator of disease. There are normally approx. 7000 white blood cells per microliter of blood. They make up approximately 1% of the total blood volume in a healthy adult.An increase in the number of leukocytes over the upper limits is called leukocytosis, and a decrease below the lower limit is called leukopenia.

so, total leukocytes count help us to determine the no. of white blood cell........

TLC ranges- 4000 to 8000or10000.so if ur tlc range is below 4000 than consult ur doctor because precaution is better than cure...............:D

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What are the advantages of using TLC solvent systems in chromatography techniques?

Using TLC solvent systems in chromatography techniques offers several advantages. These include the ability to separate and identify different compounds in a mixture, the flexibility to use a variety of solvent systems for different types of compounds, and the quick and cost-effective nature of the technique. Additionally, TLC solvent systems allow for easy visualization of separated compounds, making it a popular choice in analytical chemistry.


Why KMnO4 used in TLC?

KMnO4 is used in TLC (Thin Layer Chromatography) as a staining reagent for the detection of alkenes and alkynes. It reacts with the double or triple bonds in the compounds, forming a brown precipitate that allows for easy visualization of the separated compounds on the TLC plate.


Why is TLC a poor technique for the analysis of low boiling liquids?

TLC is a poor technique for low boiling liquids because these compounds may evaporate during the process, leading to inaccurate results. Additionally, their volatility may cause them to be carried out of the TLC plate, resulting in loss of sample and affecting the separation.


How does the polarity of TLC work in separating compounds?

The polarity of TLC (thin layer chromatography) works in separating compounds by causing them to move at different speeds along the TLC plate. Compounds that are more polar will stick more strongly to the stationary phase (the TLC plate), while less polar compounds will move more quickly with the mobile phase (the solvent). This difference in movement speed allows for the separation of compounds based on their polarity.


How far do polar molecules travel in thin-layer chromatography (TLC)?

Polar molecules travel a shorter distance in thin-layer chromatography (TLC) compared to non-polar molecules.