Alligator Rivers region regional surface water quality monitoring : November 1978 - April 1981
Alligator Rivers Region - Regional Surface Water Quality Monitoring, Volumes 1,2,3 (Plus draft)
Northern Territory. Department of Transport and Works. Water Division, Environmental Section
E-Publications; E-Books; PublicationNT; Report ; 49/1983
At head of title: Water Division, Dept. of Transport & Works, Northern Territory. "April 1983".
Water quality -- Northern Territory -- Alligator Rivers Region; Hydrology -- Northern Territory -- Alligator Rivers Region
Northern Territory Government
Report ; 49/1983
3 volumes. ; 30 cm
Attribution International 4.0 (CC BY 4.0)
Northern Territory Government
https://hdl.handle.net/10070/672725 [Alligator Rivers region regional surface water quality monitoring : November 1978 - April 1981 - WRD83049_v_1.pdf]; https://hdl.handle.net/10070/672727 [Alligator Rivers region regional surface water quality monitoring : November 1978 - April 1981 - WRD83049_v_2.pdf]; https://hdl.handle.net/10070/672729 [Alligator Rivers region regional surface water quality monitoring : November 1978 - April 1981 - WRD83049_v_3.pdf]
Technical Report WRD83049 Viewed at 14:07:10 on 29/07/2010 Page 23 of 440. 2 2. Besides the analyses carried out by k~EL, a nQ~er of field laboratory checks are made with remaining sa"ple. These include: a) b) c) pH, turbidity and conductivity measurements to check field results Determination of dissolved oxygen on the 500mL sample. This is carriec out using the Winkler filtration method. The auto-analyser is used to check some k~DEL results eg. SO,, NO,/N0 3 etc. 6.5 Laboratory Analysis Following is a SQ~ary of methocs used for particular analysis by Pu~EL: 6.5.1 General Parameter Analvsis ki\JALYSIS pH Conductivity Turbic1i ty Total Hardness Total Alkalinity ) Carbonate ) Bicarbonate ) Hycroxide ) Calci uin Magnesium Sodium Potassium Chloride Fluoride Sulphate Nitrate Nitrite/Nitrate Arrunonia Total nitrogen Phosphate Silica Dissolved residue Suspenced solids 6.5.2 Heavy metals METHOD Glass electroce Conductivity bridge Nephlometric (Hach) Calculated Titrate to given concitions AAS using Cs as ionisation suppressant Ca/Mg - NzO - acet flame Na/K - air - acet flame more recently by ICP at Pu~DEL Argentometric titration Soecific ion electrode Auto analyser (colorimetric) " " " " " " Specific ion electroce colorimetric (auto analyser) colorimetric (auto analyser) Gravimetric Gravimetric The majority of rretal w.alyses are car::i.ed out by A.AS/g::-a?hit:e :::u...vnace rrethods. The analvsis of residnos follow acid digestion. T:,e F I. F A modification is used by &~DEL. The metal analyses are: ' I 1 I I I I I I I I I I I I I I 1 I
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