Determination of total nitrogen content in fresh leaves and leaf powder of Dendrobium orchids using near-infrared spectroscopy

2020 ◽  
Author(s):  
Supasuta Karoojee ◽  
Sirinad Noypitak ◽  
Supatida Abdullakasim
Keyword(s):  
Infrared Spectroscopy ◽  
Nitrogen Content ◽  
Total Nitrogen ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Total Nitrogen Content ◽  
Leaf Powder

Determination of API Gravity and Total and Basic Nitrogen Content by Mid- and Near-Infrared Spectroscopy in Crude Oil with Multivariate Regression and Variable Selection Tools

2019 ◽  
Vol 52 (18) ◽  
pp. 2914-2930 ◽  
Author(s):  
Karla Pereira Rainha ◽  
Júlia Tristão do Carmo Rocha ◽  
Rayza Rosa Tavares Rodrigues ◽  
Betina Pires de Oliveira Lovatti ◽  
Eustáquio Vinicius Ribeiro de Castro ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Variable Selection ◽  
Crude Oil ◽  
Nitrogen Content ◽  
Near Infrared Spectroscopy ◽  
Multivariate Regression ◽  
Near Infrared ◽  
Basic Nitrogen ◽  
Selection Tools

Determination of Total Nitrogen, Ammonia, and Nitrite in River Water by Near-infrared Spectroscopy and Chemometrics

2017 ◽  
Vol 50 (10) ◽  
pp. 1620-1629 ◽  
Author(s):  
Jian Huang ◽  
Pei-ran Liu ◽  
Qing-ye Sun ◽  
Hua Zhang ◽  
Yong Zhang ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
River Water ◽  
Total Nitrogen ◽  
Near Infrared Spectroscopy ◽  
Near Infrared
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