The Lactulose Assay Kit is suitable for the specific, rapid and sensitive measurement and analysis of lactulose in milk and milk-based samples. Reagents included in this kit may also be prepared for use in the procedure described by ISO Method 11285:2004.
Detail
Lactulose Assay Kit
Content:
50 assays per kit
Shipping Temperature:
Ambient
Storage Temperature:
Short term stability: 2-8oC, Long term stability: See individual component labels
Stability:
> 2 years under recommended storage conditions
Analyte:
Lactulose
Assay Format:
Spectrophotometer
Detection Method:
Absorbance
Wavelength (nm):
340
Signal Response:
Increase
Linear Range:
0.65 to 65 µg of lactulose per “Enzymatic Determination Reaction
Limit of Detection:
4.8 mg/L
Reaction Time (min):
~ 120 min
Application examples:
Milk, dairy products and foods containing milk.
Method recognition:
Novel method
The Lactulose Assay Kit is suitable for the specific, rapid and sensitive measurement and analysis of lactulose in milk and milk-based samples. Reagents included in this kit may also be prepared for use in the procedure described by ISO Method 11285:2004.
Twice the sensitivity of traditional hexokinase based lactulose methods
Very cost effective
All reagents stable for > 2 years after preparation
Mega-Calc™ software tool is available from our website for hassle-free raw data processing
Standard included
Other Products
[RI1000] RNAok™ RNase Inhibitor, 20 U/μl, 2000 U
Product Info
Document
Product Info
Description
The RNAok™ RNase Inhibitor is a recombinant mammalian RNase inhibitor which possesses very high affinity for eukaryotic pancreatic-type ribonuclease. The RNAok™ RNase Inhibitor forms a 1:1 complex with pancreatic RNase A by noncovalent binding, presenting a noncompetitive inhibitory activity on these pancreatic enzymes. RNAok™ RNase Inhibitor is active against RNase A, RNase B, RNase C but not RNAse H, RNase I, RNase T1, RNase T2, and S1 nuclease. RNAok™ RNase Inhibitor is compatible with RT-PCR enzymes such as AMV, M-MLV and ExcelRT™ Reverse Transcriptase or Taq DNA polymerase.
Application
cDNA synthesis
in vitro translation
in vitro transcription
One-step RT-PCR
Separation and identification of specific ribonuclease activities
Storage Buffer
40 mM HEPES-KOH (pH 7.5), 100 mM KCl, 8 mM DTT, 0.1 mM EDTA, stabilizer and 50% (v/v) glycerol
Storage
-20°C for 24 months
Document
The RNAok™ RNase Inhibitor is a recombinant mammalian RNase inhibitor which possesses very high affinity for eukaryotic pancreatic-type ribonuclease. The RNAok™ RNase Inhibitor forms a 1:1 complex with pancreatic RNase A by noncovalent binding, presenting a noncompetitive inhibitory activity on these pancreatic enzymes. RNAok™ RNase Inhibitor is active against RNase A, RNase B, RNase C but not RNAse H, RNase I, RNase T1, RNase T2, and S1 nuclease. RNAok™ RNase Inhibitor is compatible with RT-PCR enzymes such as AMV, M-MLV and ExcelRT™ Reverse Transcriptase or Taq DNA polymerase.
HiPure Bacterial RNA Kit uses silica gel column purification to simplify the extraction. The whole process does not require phenol chloroform extraction and time-consuming alcohol precipitation. The kit is suitable for efficiently extracting RNA from various bacterial samples. The purified RNA can be directly used for RT-PCR, Northern hybridization, etc. The kit has included lysozyme and glass beads, which can be used to treat gram-negative bacteria which is easy to be lysed, as well as gram-positive bacteria which is hard to be lysed, including enterococcus faecalis, staphylococcus, etc.
Details
Specifications
Features
Specifications
Main Functions
Isolation total RNA from bacteria culture
Applications
RT-PCR, Northern blot, poly-A + purification, nucleic acid protection and in vitro translation
Purification method
Mini spin column
Purification technology
Silica technology
Process method
Manual (centrifugation or vacuum)
Sample type
Bacteria culture
Sample amount
Bacteria: <10^9
Elution volume
≥30μl
Time per run
≤40 minutes
Liquid carrying volume per column
800µl
Binding yield of column
100µg
Principle
Hipure silica gel column is based on glass fiber filter membrane with high binding force. Under the condition of high concentration of ionizing agent (such as guanidine hydrochloride or guanidine isothiocyanate), the filter membrane can adsorb nucleic acid through hydrogen bond and electrostatic, while protein and other impurities are not adsorbed and removed. The filter membrane adsorbed with nucleic acid is washed to remove the residual protein and salt. Finally, the nucleic acid adsorbed on the filter membrane can be washed out with low salt buffer (such as buffer TE) or water. The obtained nucleic acid has high purity and can be directly used in various downstream experiments.
Advantages
Fast – several samples can be extracted in 30 minutes
High purity – the purified RNA can be directly used in various downstream applications
High recovery – RNA can be recovered at the level of PG
Good repeatability – silica gel column purification technology can obtain ideal results every time
Broad spectrum – it can deal with various bacteria, including Gram-positive bacteria that are difficult to be lysed
Sufficient components – the kit contains carried lysozyme and glass beads
Kit Contents
Contents
R418101
R418102
R418103
Purification Times
10 Preps
50 Preps
250 Preps
gDNA Filter Mini Columns
10
50
250
HiPure RNA Mini Columns
10
50
250
2ml Collection Tubes
20
100
500
Glass Beads (0.1-0.6mm)
10 g
30 g
150 g
Plastic spoon
2
4
10
Lysozyme
20 mg
90 mg
400 mg
Protease Dissolve Buffer
1.8 ml
1.8 ml
10 ml
Buffer TE
1.8 ml
1.8 ml
5 ml
Buffer STL
5 ml
20 ml
90 ml
Buffer RLC
10 ml
30 ml
150 ml
Buffer RW1
10 ml
50 ml
250 ml
Buffer RW2*
5 ml
20 ml
2 x 50 ml
RNase Free Water
1.8 ml
10 ml
30 ml
Storage and Stability
The kit components can be stored at room temperature (15–25°C) and are stable for at least 18 months under these conditions. Due to the lack of antibacterial agents, RNase Free Water may be contaminated by bacterial or fungal when placed or operated at room temperature. It is recommended to pack and store at 2-8°C to reduce contamination.
Document
HiPure Bacterial RNA Kit uses silica gel column purification to simplify the extraction. The whole process does not require phenol chloroform extraction and time-consuming alcohol precipitation. The kit is suitable for efficiently extracting RNA from various bacterial samples. The purified RNA can be directly used for RT-PCR, Northern hybridization, etc. The kit has included lysozyme and glass beads, which can be used to treat gram-negative bacteria which is easy to be lysed, as well as gram-positive bacteria which is hard to be lysed, including enterococcus faecalis, staphylococcus, etc.
Tetra(3-methoxy-N-(prop-2-ynyl)propanamide) Methane is a 4-branched molecule with propargyl groups that can be linked to azide-containing biomolecules via Click Chemistry. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Document
Tetra(3-methoxy-N-(prop-2-ynyl)propanamide) Methane is a 4-branched molecule with propargyl groups that can be linked to azide-containing biomolecules via Click Chemistry. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.