Determination of nitrite and nitrate in some horticultural and meat products and in samples of soil.
D008460:Meat / Q000032:analysis*; D008722:Methods; D009566:Nitrates / Q000032:analysis*; D009573:Nitrites / Q000032:analysis*; D012987:Soil / Q000032:analysis; D013053:Spectrophotometry
D009566:Nitrates; D009573:Nitrites; D012987:Soil