Solution Tubes

Solution Detector Tubes for Dissolved Substances in Solutions

Nextteq® distributes Nextteq® brand-labeled solution detector tubes as well as solution tubes manufactured by Gastec®. Solution Detector Tubes provide fast, economical, on-the-spot detection of trace chemicals in liquids. Accurate results in 5 minutes or less. Only the detector tubes and a solution container are required. No mixing, pumps, calibration equipment or accessories are required.

A Nextteq® brand-labeled solution detector tube in a beaker of clear liquid.

Ordering Information:

Substance to be measured Chemical Formula Brand Nextteq (NXI) Gastec (G) P/N Measuring range
Sulfide Ion in Solution S2- G 211H 10-1000ppm
NXI NX406H 2-1000
G 211M 2-300ppm
G 211 1-100ppm
G 211LL 0.5-20ppm
NXI NX406L 0.5-10ppm
Ozone in Solution O3 G 218 1-10mg/L
Chloride Ion in Solution Cl- G 221L 25-1000mg/L
NXI NX401H 10-2000ppm
G 221LL 10-200mg/L
NXI NX401M 3-200ppm
NXI NX401L 1-60ppm
Chlorine Free Residual ClO- NXI NX404 0.4-5ppm
G 222 0.1-10mg/L
Bromide Ion in Solution
(using Chloride Ion tube)		 Br- G 221L 55-2200mg/L
G 221LL 24-480mg/L
Mercury in Solution Hg2+ G 271 1-20mg/L
Chromium (VI) Ion in Solution Cr6+ G 273 0,5-50mg/L
Iron Ion in Solution Fe2+ G 281 5-50mg/L
Copper Ion in Solution Cu2+ G 284 1-20mg/L
NXI NX402 1-100mg/L
Zinc in Solution Zn2+ G 285 3-20mg/L
Nickel in Solution Ni2+ G 291 5-50-mg/L
Cyanide Ion CN- NXI NX403 0.2-5ppm
Salinity NaCl NXI NX405 0.01-0.8%
Water content in solvent H2O NXI NX407 10-160mg/L
50-400mg/L
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