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This preparation would maintain good contrast and reduce the formation of lead carbonate in resin-embedded tissue sections. This new method provides a shorter staining protocol of fewer than 5 minutes, extended storage duration, improved contrast, higher broad differential range, and prevents contamination from the environment. Introducing 20% ethanol to the lead citrate formula makes it to be more stable than lead nitrate formula.
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Raj et al. (2021) studied this question.
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