MICROWAVE DIGESTION OF PLANT-SAMPLES FOR SULFUR ANALYSIS

被引:15
作者
FINCH, CR
PENNINGTON, HD
LYONS, CG
LITTAU, SE
机构
[1] Horticulture Department, 225 Hort./Forestry Bldg, Texas A&M University, College Station
[2] Texas Agricultural Extension Soil and Plant Analysis Laboratory, Texas A & M University, College Station
[3] Horticulture Department, Texas A & M University, College Station
[4] CEM Corporation, Matthews
关键词
D O I
10.1080/00103629009368254
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
The goal was to develop an easy, fast, and economical procedure to produce plant digests that can be accurately analyzed by plasma emission spectrometry for foliar sulfur content. The closed vessel microwave procedure described requires less than 2 hours to produce 12 digested 0.5 gram samples from the point of weighing the samples to applying them to plasma emission spectrometry analysis. The procedure utilizes nitric acid and hydrogen peroxide as a predigestion. The predigested samples are then each microwaved for 2.25 minutes. With this procedure, sulfur levels are within an average of 1.27% of that reported for the NBS Citrus Standard, are within 102.25. © 1990, Taylor & Francis Group, LLC. All rights reserved.
引用
收藏
页码:583 / 594
页数:12
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