Table 7 Analytical methods used to assess water quality parameters of the Qing River basin.
From: Estimating the nutrient thresholds of a typical tributary in the Liao River basin, Northeast China
Parameter | Analytical Method |
|---|---|
TN | Alkaline potassium persulfate digestion with UV spectrophotometric detection |
TP | Ammonium molybdate spectrophotometry |
NH4+-N | Sodium reagent colorimetry |
NO3−N | UV spectrophotometry |
BOD5 | Dilution and seeding |
CODCr | Dichromate method |
DO | Portable DO analyzer |
pH | pH meter |
T | Portable water quality analyzer |
EC | Portable water quality analyzer |
Chloride | Ion chromatography |
Sulfate | Ion chromatography |
FCC | Multiple-tube fermentation |
TBC | Dilution-culture method |
