Tob. Reporter, 2001,128-5, p. 56-8, ISSN.0361-5693 The hole story - Cavity filters offer considerable advantages JACCARD P. Baumgartner Papiers SA-Division Fibertec, Lab. and Res. Lausanne, Crissier, Switzerland
Tob. Sci., 1974, 18-05, p. 10, ISSN.0082-4523 Colorimetric determination of ammonia in tobacco NIKOLIN B.; NIKOLIN A.; BUTMIR H. Institute of Chemistry, University of Sarajevo, Yugoslavia Wasilewski’s method is very suitable for a rapid and sensitive determination. This method is specific and amino acids, amides, and peptides do not interfere with the determination of ammonia in tobacco. The percentage recovery by Wasilewski’s method...
Tob. Sci., 1973, 17-52, p. 159-161, ISSN.0082-4523 Measuring Fe content of irrigation water with atomic absorption in a water monitoring program to prevent leaf damage in cigar wrapper tobacco RHOADS F.M. Agricultural Research and Education Center, Quincy, Florida USA Iron measurement in irrigation water with an atomic absorption spectrophotometer (AAS) was compared with a colorimetric procedure. The effect of three chemical pretreatments of water samples on absorbance by AAS in the Fe absorption band of 2483A was...
Tob. Sci., 1972, 16-26, p. 89-91, ISSN.0082-4523 Effects of chloride level in irrigation water on nutrient content, burning quality, yield, leaf quality and tensile strength of cigar wrapper tobacco RHOADS F.M. Agricultural Research and Education Center, Quincy, Florida USA The effect of Cl in irrigation water on several indexes of plant response in cigar wrapper tobacco was studied. Leaf Cl contents of greenhouse and field plants were similar where Cl levels in irrigation water were the same for both growing...