Overview

Norgen's Urine Preservative is designed for the rapid preservation of DNA, RNA, microRNA and proteins from fresh urine samples. In addition, the Urine Preservative eliminates the need to immediately process or freeze samples and allows the samples to be shipped to centralized testing facilities at ambient temperatures. The components of the Urine Preservative allow samples to be stored for over 2 years at room temperature with no detected degradation of urine DNA, RNA or proteins.

Norgen's Urine Preservative is available in 2 convenient formats:

1.  Urine Preservative Single Dose Ampules
With this product Norgen's Urine Preservative is supplied in a liquid format in single dose ampules. The user simply collects 5 - 50 mL of urine into a urine collection container and adds the contents of the Urine Preservative Single Dose (Cat# 18126). The urine and preservative are then mixed, and the urine nucleic acids and proteins are preserved at room temperature.

2.  Urine Collection and Preservation Tubes
Norgen's Urine Preservative is also available in a dried format in Norgen’s Urine Collection and Preservation Tubes. The user simply collects urine into the tubes and mixes gently until the orange preservative pellet in the tube has dissolved. Norgen's Urine Collection and Preservation Tubes are available in 3 convenient sizes:

• 5 cc tubes, 1 - 5 mL of urine
• 15 cc tubes, 5 - 15 mL of urine
• 50 cc tubes, 5 - 45 mL of urine
• 120 cc cup, 100 - 120 mL of urine

Details

Supporting Data

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Figure 1. Stability of DNA in Norgen's Urine Preservative. Urine samples were collected from numerous healthy donors and pooled, and then the urine was aliquoted into 5 mL aliquots in Norgen's Urine Collection and Preservation Tubes (5 cc) (Cat# 18116). The preserved urine was stored at -20°C, 4°C and room temperature for up to 48 months. Urine DNA was subsequently isolated at time 0, 1 month, 2 months, 4 months, 8 months, 12 months, 16 months, 20 months and 24 months from the preserved urine using Norgen's Urine DNA Isolation Kit (Slurry Format) (Cat# 48800). To test the integrity of the purified DNA, 3 μL of each elution was used in a 20 μL Taqman PCR reaction run on a CFX96 Touch Real-Time PCR Detection System (Bio-Rad) using Norgens 2X PCR Master Mix with 5s rRNA primers. As it can be seen, all the DNA samples were successfully amplified. Furthermore, the quality of the concentrated and preserved urine DNA stored at all 3 temperatures did not significantly change from 0 months to 24 months, as indicated by the fact that the Ct value remained consistent.

Figure 2. Stability of RNA in Norgen's Urine Preservative. Urine samples were collected from numerous healthy donors and pooled, and then the urine was aliquoted into 5 mL aliquots in Norgen's Urine Collection and Preservation Tubes (5 cc) (Cat. 18116). The preserved urine was stored at -20°C, 4°C, and room temperature for up to 24 months. Urine RNA was then subsequently isolated at time 0, 1 month, 2 months, 4 months, 8 months, 12 months, 16 months, and 24 months from the preserved urine using Norgen's Urine Total RNA Purification Maxi Kit (Slurry Format) (Cat. 29600).

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