









NECi
Water Phosphate Test Kit
Choose options
Easy to Use, Quick Results, Non-Toxic
Get reliable phosphate testing results in the field — in just 20-25 minutes. This professional water phosphate test kit is designed for environmental monitoring, agriculture, and water quality assessment without the wait or cost of laboratory analysis.
Perfect for on-site testing when you need immediate answers about your water quality. No laboratory experience required — just follow the simple instructions and get accurate, instrument-based measurements.
Kit Specifications
- Low Range (0.5 - 5.0 ppm Phosphate) — For ambient, unimpaired environmental water sources
- Standard Range (5.0 - 20.0 ppm Phosphate) — For drinking water, well water, agricultural runoff, and other water types
- Results in 20-25 minutes
- On-site testing - no laboratory required
- Easy to use - no laboratory experience required
- Environmentally benign
- Based on green chemistry enzymatic method
- Please Note - this kit requires a photometer to read the results
Choose Your Range
Phosphate is reported in different units depending on your field of use and where you live.
| PTK Field Water Test Kits | ppm PO₄ | ppm PO₄-P | µM PO₄ |
| Low Range Kit | 0.5 - 5.0 | 0.16 - 1.6 | 5.26 - 52.65 |
| Standard Range Kit | 5.0 - 20.0 | 1.63 - 6.53 | 52.65 - 210.59 |
How It Works
- Collect Samples: Collect your water samples directly into the sample collection tubes.
- Mix & React: Add buffer and some of each sample to the prepared reaction cuvettes.
- Develop Color: Enzyme reacts with phosphate to produce a UV-measurable color change.
- Read Results: Measure the color with a spectrophotometer and compare to calibration standard.
Kit Options
Choose from kits for phosphate analysis of:
- 5 samples
- 10 samples
- 25 samples
- 50 samples
Materials You Will Need
You will need a marker for labeling tubes and cuvette caps, and a spectrophotometer capable of reading at 360 nm which accepts standard square cuvettes.
Kit Contents
- Sample Collection Tubes
- Snap Cap Tubes (contain buffer)
- Reaction Cuvettes (contains enzyme + co-factor)
- Pipettes
- Cardboard Cuvette Holder
- Set of Instructions
Applications
- Well water, drinking water, agricultural water, pond water
- Streams, lakes, rivers, oceans, wetlands, and environmental watersheds
- Wastewater and industrial effluent
- Aquarium, hydroponic, aquaculture, and aquaponic water
Storage Requirements
This product must be stored refrigerated at 4°C upon receipt.
Ordering Information
Contact us to inquire about bulk quantity discounts or wholesale orders, or to request a quote for international orders.
Resources & Downloads
Standard Range Water Phosphate Test Kit Instructions
Low Range Water Phosphate Test Kit Instructions
