Definition of ninhydrin in English:

ninhydrin

noun nɪnˈhʌɪdrɪnninˈhīdrin

mass nounChemistry

A synthetic crystalline compound which forms deeply coloured products with primary amines and is used in analytical tests for amino acids.
A ketone derivative of indene; chemical formula: C₉H₆O₄
Example sentencesExamples
- The proline content was determined by reacting with ninhydrin in an acid medium.
- The clone expressing the g lactamase forms some amino acid product - this is readily detected by staining with ninhydrin.
- The amino acids were separated in this HPLC-system by ion exchange and detected after post-column derivatization with ninhydrin at 570 nm.
- After the chromatography was complete, dried plates were sprayed with a solution of 2% ninhydrin in acetone (w/v), followed by heating.
- The photochemistry of ninhydrin in benzene and water was studied by laser flash photolysis and electron paramagnetic resonance.

Origin

Early 20th century: from nin- (of unknown origin) + hydro- + -in¹.

Definition of ninhydrin in US English:

ninhydrin

nounninˈhīdrin

Chemistry

A synthetic crystalline compound which forms deeply colored products with primary amines and is used in analytical tests for amino acids.
A ketone derivative of indene; chemical formula: C₉H₆O₄
Example sentencesExamples
- The proline content was determined by reacting with ninhydrin in an acid medium.
- The amino acids were separated in this HPLC-system by ion exchange and detected after post-column derivatization with ninhydrin at 570 nm.
- After the chromatography was complete, dried plates were sprayed with a solution of 2% ninhydrin in acetone (w/v), followed by heating.
- The photochemistry of ninhydrin in benzene and water was studied by laser flash photolysis and electron paramagnetic resonance.
- The clone expressing the g lactamase forms some amino acid product - this is readily detected by staining with ninhydrin.

Origin

Early 20th century: from nin- (of unknown origin) + hydro- + -in.

单词	ninhydrin
释义	Definition of ninhydrin in English: ninhydrin noun nɪnˈhʌɪdrɪnninˈhīdrin mass nounChemistry A synthetic crystalline compound which forms deeply coloured products with primary amines and is used in analytical tests for amino acids. A ketone derivative of indene; chemical formula: C₉H₆O₄ Example sentencesExamples The proline content was determined by reacting with ninhydrin in an acid medium. The clone expressing the g lactamase forms some amino acid product - this is readily detected by staining with ninhydrin. The amino acids were separated in this HPLC-system by ion exchange and detected after post-column derivatization with ninhydrin at 570 nm. After the chromatography was complete, dried plates were sprayed with a solution of 2% ninhydrin in acetone (w/v), followed by heating. The photochemistry of ninhydrin in benzene and water was studied by laser flash photolysis and electron paramagnetic resonance. Origin Early 20th century: from nin- (of unknown origin) + hydro- + -in¹. Definition of ninhydrin in US English: ninhydrin nounninˈhīdrin Chemistry A synthetic crystalline compound which forms deeply colored products with primary amines and is used in analytical tests for amino acids. A ketone derivative of indene; chemical formula: C₉H₆O₄ Example sentencesExamples The proline content was determined by reacting with ninhydrin in an acid medium. The amino acids were separated in this HPLC-system by ion exchange and detected after post-column derivatization with ninhydrin at 570 nm. After the chromatography was complete, dried plates were sprayed with a solution of 2% ninhydrin in acetone (w/v), followed by heating. The photochemistry of ninhydrin in benzene and water was studied by laser flash photolysis and electron paramagnetic resonance. The clone expressing the g lactamase forms some amino acid product - this is readily detected by staining with ninhydrin. Origin Early 20th century: from nin- (of unknown origin) + hydro- + -in.
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