Notes on the spectrophotometric determination of lignin in wood samples

✍ Scribed by J. D. Zyl

• Publisher: Springer
• Year: 1978
• Tongue: English
• Weight: 384 KB
• Volume: 12
• Category: Article
• ISSN: 0043-7719
• DOI: 10.1007/bf00351927

✦ Synopsis

A method developed by Johnson et al. whereby lignin is determined spectrophotometrically was found to yield lignin values which showed variations of up to 10 %. The presence of water in, and the freshness of the digestive mixture together with the grade of acetic acid used and the time between dilution and measurement of absorbance were found to affect the reproducibility of the method.