转化试剂Silwet L-77
拟喃芥、油菜等转化必须试剂之一，原产地为美国GE公司，我公司(北京五洲元业公司)自２００６年代理该产品，提供各种规格的原装和分装产品。
转化试验中Silwet-L77的作用
Silwet-L77高效有机硅表面活性剂，能够极大的降低水的表面张力(水的表面张力为72.4mN/m，0.1%的Silwet-L77系列有机硅溶液的表面张力约为21mN/m),这使Silwet-L77有机硅溶液可轻易湿润几乎所有种类的叶面,相对于传统助剂,显著提高了在靶标生物的覆盖面.同时，Silwet-L77有机硅助剂具有极强的耐水冲刷及渗透能力。Silwet-L77是拟南芥及其它作物常用的转基因用表面活性剂。
价格:
S5505-10ml 350.00 SL77080596-10ml 550.00 SL77080596-35ml 1550.00
购买方法:
咨询电话: 01083264770 86515144 88621284
Silwet L-77 is a chemical mixture of polyalkyleneoxide modified heptamethyltrisiloxane (84%) and allyloxypolyethyleneglycol methyl ether (16%). It is an essential infiltration media ingredient for all Agrobacterium-based transformations of Arabidopsis and other plants.
10 mL and 35 mL are sufficient quantity to prepare 33 L and 115 L of vacuum infiltration medium when used at the recommended rate of 0.03%, v/v, respectively.
SILWET L-77 is a unique surfactant designed to improve the spreading
and wetting properties of pesticide spray mixes. SILWET L-77 utilizes
unique organosilicone chemistry which provides the most complete
coverage possible. SILWET L-77 can improve cuticular penetration of
plant surfaces by the spray mix. Optimum application and resultant
effects can be influenced by many factors. Consequently, it is
recommended that careful observation of the spray deposit be made and
adjuvant rates adjusted accordingly. Applications should be made to
ensure thorough coverage without excessive run-off.
TYPICAL PROPERTIES
Physical appearance Clear, light amber liquid
Pounds per gallon 8.370
Specific gravity 1.0 - 1.01
pH (1.0%) 6.0 - 7.0
Freeze Point less than 35 degrees F
Surface Tension (0.125% v/v) less than 25 dynes/cm
Contact Angle (0.125% v/v) less than 5 degrees F
Draves Wet Time (0.125% v/v) less than 15.0 seconds
GENERAL PRODUCT INFORMATION
(1) SILWET L-77 contains organosilicone surfactants designed to
provide superior wetting and coverage.
(2) SILWET L-77 can improve water penetration of hard to wet soils
and provide more uniform distribution of applied moisture.
(3) SILWET L-77 is generally compatible with pesticides and
fertilizer solutions.
(4) SILWET L-77 may cause excessive foam if not properly added to the
spray tank. To minimize foam generation, add SILWET L-77 to the
tank after all other ingredients are added. If foaming is still
a concern, add an antifoaming agent, such as FOAMBUSTER or COMBAT
PLUS to the tank prior to adding SILWET L-77.
(5) Do not allow spray mixes containing SILWET L-77 to sit over 36
hours.