轉(zhuǎn)化試劑Silwet L-77
擬喃芥、油菜等轉(zhuǎn)化必須試劑之一，原產(chǎn)地為美國GE公司，我公司(北京五洲元業(yè)公司)自２００６年代理該產(chǎn)品，提供各種規(guī)格的原裝和分裝產(chǎn)品。
轉(zhuǎn)化試驗中Silwet-L77的作用
Silwet-L77高效有機硅表面活性劑，能夠極大的降低水的表面張力(水的表面張力為72.4mN/m，0.1%的Silwet-L77系列有機硅溶液的表面張力約為21mN/m),這使Silwet-L77有機硅溶液可輕易濕潤幾乎所有種類的葉面,相對于傳統(tǒng)助劑,顯著提高了在靶標(biāo)生物的覆蓋面.同時，Silwet-L77有機硅助劑具有極強的耐水沖刷及滲透能力。Silwet-L77是擬南芥及其它作物常用的轉(zhuǎn)基因用表面活性劑。
價格:
S5505-10ml 350.00 SL77080596-10ml 550.00 SL77080596-35ml 1550.00
購買方法:
咨詢電話: 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.