Long-Term Stabilities

Type Bead size djo (/xm) Size exclusion pore dimension (nm) Exclusion limit protein (M,) Fractionation range protein (/V ,) pH stability (long term/ short term)... 

SILICONE GUM "1 FLUOROSILICONEJ 2-10 GOOD THERMAL STABILITY (LONG TERM) 175°C... 

Compounds frozen in DMSO are generally stable. However, the number of ffeeze/thaw cycles must be kept to a minimum to avoid compound loss. Compound loss is mainly due to precipitation, whereas compound loss due to degradation is negligible (no additional peaks are detected in the HPLC analysis). It has been reported that 10 M stock solutions can undergo more than 10 freeze/thaw cycles with no significant effect on compound stability. Long-term storage of compounds at room temperature in DMSO, over a three-month period, is also possible with only minor loss of compound. Kozikowski etal observed a less than 20% loss after three months in 92% of the cases. 

Actual" or "Significant" Degradation Products (Accelerated Stability / Long-term Room Temp. Stability)... 

Our testing program includes measurements of the following properties compressive strength, leachability, radiation stability, thermal stability (long-term), and impact resistance. 

The overall goal, however, will be to implement nature s ability for recognition within an artificial system and thus overcome nature s main limitations in stability, long-term effectiveness and operational environment. 

The third limitation, the counting capability of the detector, depends on the detector type used, the voltage divider design, and the requirements for IRF stability, long-term gain stability, and detector lifetime. For conventional PMTs the practical limit for TCSPC is of the order of 5 to 10 MHz. For MCP-PMTs the maximum count rate is 200 kHz to 2 MHz, depending on the MCP gain used. 

Features Exc. UV stability, long term thermal stability, ESCR good processability, chem. resist. 

Spill response often begins with actions intended to remove or stabilize a spill. The objective of these actions may be to prevent acute human health and environmental effects and/or to prevent further migration of the spilled material. After the situation stabilizes, long-term remediation may be necessary to restore the soil and groundwater to acceptable conditions. 

Geolast shows outstanding thermal stability. Long term exposixre to 125 C in both oU or hot air practically does not change initial properties. 

The cost-efFectiveness of an industrial catalytic process is strongly influenced by the stability, long-term activity, and life time of the catalyst The two main causes of life-time reduction of a Cu/Zn-methanol catalyst are catalyst poisoning and thermal deactivation. 

Keywords light stabilizer, long-term stabilization, photoantioxidant,... 

Slags Recrystallize glass-devitrification Unknown stability long term Quenched slags, low solubility Low efficiency, high volume High production cost can theoretically get energy back (Broadbent Warner 1985) ... 

Good thermal stability long-term stability is required for MD membranes to temperatures as high as 100°C. 

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