Proper tissue washing procedures would be pivotal, but little information is known until now.įor castor beans containing plenty of lipids that were fragile when handled, we developed a comprehensive tissue pretreatment protocol. However, sample preparation approaches for plant tissues still face severe challenges, especially for some lipid-rich, water-rich, or fragile tissues. ![]() As a new imaging technique with label-free, rapid, and high throughput features, matrix-assisted laser desorption ionization mass spectrometry imaging (MALDI-MSI) has been gradually stressed in plant research. The traceability of the origins of castor beans is thus essential for forensic and anti-terror investigations. Potential resources or materials include beans, raw extraction products, crude toxins, and purified ricin. ![]() Castor bean or ricin-induced intoxication or terror events have threatened public security and social safety.
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