Listeria monocytogenes Quantified Bacterial DNA Standard
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Detail
Overview
Quantified standard to be used as a positive control or PCR quantification standard
Vigorously quantified using multiple methods
Listeria monocytogenes has emerged as a significant foodborne pathogen that poses a serious public health problem. As the causative agent of Listeriosis, L. monocytogenes has the highest rate of fatality among all foodborne pathogens. L. monocytogenes is a facultatively intracellular, Gram-positive bacterium. Due to its ability to survive high and low temperatures as well as low pH, it could resist various food processing technologies, as well as grow at food storage temperatures. L. monocytogenes is known to be associated with raw meat, unpasteurized milk and dairy products, vegetables, and seafood. As little as 1000 organisms may cause the disease with pregnant, new-born, and immunocompromised individuals being the most susceptible.
Norgen’s Listeria monocytogenes Quantified Bacterial DNA Standard is prepared from cultured bacteria using Norgen’s sample preparation technology. The purified DNA is quantified vigorously using multiple methods including spectrophotometry, gel densitometry and real-time PCR. It is intended to be used as a positive control or PCR quantification standard for Listeria monocytogenes.
Upon receipt, store Norgen’s Listeria monocytogenes Quantified Bacterial DNA Standard at -20oC or lower. Avoid multiple freeze-thaw cycle. If needed, prepare smaller working aliquots and store at -20oC or lower.
Other Products
DBCO-PEG4-C3-sulfonic acid
Product Info
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Product Info
DBCO-PEG4-C3-sulfonic acid serves as a bifunctional PEG linker. The DBCO click chemistry handle conjugates with azides on target molecules to form stable triazole linkages. The sulfonic acid can participate in esterification, halogenation and displacement reactions.
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DBCO-PEG4-C3-sulfonic acid serves as a bifunctional PEG linker. The DBCO click chemistry handle conjugates with azides on target molecules to form stable triazole linkages. The sulfonic acid can participate in esterification, halogenation and displacement reactions.
RNA/microRNA/DNA/Proteins are preserved for more than 2 years at room temperature in Norgen’s Urine Preservative
Compatible with most DNA, Total RNA, microRNA and protein isolation methods
Preservative is available in a single dose liquid format (ampule)
Preservative is also available in a dried format in tubes – Urine Collection and Preservation Tubes
Urine Collection and Preservation Devices are available in 4 convenient sizes: 5 cc tubes, 15 cc tubes, 50 cc tubes, and 120 cc cups
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:
Select Urine Tested with the Norgen Urine Collection and Preservation Tubes
Human Mouse Lynx Wolf Urine collected from snow
Available Sizes and Formats
Urine Collection and Preservation Tubes (5 cc) – Urine inputs from 1 – 5 mL
Storage Conditions and Product Stability All tubes should be kept tightly sealed and stored at room temperature (15 – 25°C) for up to 2 years without any reduction in performance.
Kit Components
Cat. 18118 (50 tubes)
Cat. 18122 (50 tubes)
Cat. 18113 (50 tubes)
Cat. 18126 (50 tubes)
Cat. 18129 (1 cup)
Urine Collection and Preservation Tubes (5 cc)
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Urine Collection and Preservation Tubes (15 cc)
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50
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Urine Collection and Preservation Tubes (50 cc)
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50
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Urine Preservative Single Dose
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50
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Urine Collection and Preservation Cup (120 cc)
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ID Labels
50
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50
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Product Insert
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Document
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:
