All Tests

Turbidity. Turbidity in water is caused by suspended and colloidal matter. Highly pigmented samples can give a falsely low turbidity values. The method has a detection limit of 0.1 NTU.

V. This test method determines the concentration of vandium in a water sample by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES).

Zn.

This is a soil composition test. This method determines the amount of zinc by acid digestion. Quantification made is by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES). The approximate method detection limit is 1 mg/kg.

Zn. This test method determines the concentration of zinc by utilizing an acid digestion and determination by atomic absorption spectrometry (AAS). The method has detection limits ranging from 0.1 mg/Kg. The method is generally reproducible within 8%.

Zn.

This is a soil fertility test. It utilizes the DTPA micronutrient extraction method that estimates the amount of available zinc in a soil sample. Analyte concentrations are determined by atomic absorption spectrometry (AAS) or inductively coupled plasma atomic emission spectrometry (ICP-AES). The method has shown to be well correlated to crop response to zinc fertilizers. The method detection limit is approximately 0.1 mg/kg and is generally reproducible to ± 10%.