6 results about "Gum Camphor" patented technology

The application provides a method for determining components in Gushen Dingchuan Pills and application thereof. In the preparation process of the sample to be determined, the mixed solvent composed of water and organic solvent is used to ultrasonically extract the Gushen Dingchuan Pill powder, and then cold soaking and layering are performed, so that the influence of other components on the separation and stability of volatile components in the Gushen Dingchuan Pill can be significantly reduced, the separation stability of the volatile components in the Gushen Dingchuan Pill is significantly improved, and the separation time is shortened. The method provided by the application can quantitatively analyze seven chemical components (borneol acetate, camphor, borneol, cinnamic aldehyde, paeonol, alpha-pinene and linalool) in the Gushen Dingchuan Pill, and realizes qualitative and quantitative determination at the same time.

The application discloses a composite tailor-welding method for improving the yield of an aluminum-silicon coated plate integrated door ring, and belongs to the technical field of tailor-welding methods.The method comprises the following steps: preparing a plurality of door ring blanking pieces, all of which are aluminum-silicon coated plate materials; and connecting the blanking pieces into an integrated door ring by tailor-welding, wherein the connection mode between one blanking piece and the adjacent two sides is lap joint, the lap joint strength at the two places is realized by resistance spot welding, the other connections are butt joints, and the strength is realized by laser tailor-welding, the laser tailor-welding adopts a micro-sphere reinforced welding wire, and the preparation method of one of raw materials of the micro-sphere reinforced welding wire, porous micro-sphere composite metal powder, is modifying camphor by using cation starch modified kaolin and sodium lignosulfonate, and mixing the camphor with Al-Si-Sr alloy micro-sphere powder to form pores.Through the above method, the yield of the aluminum-silicon coated plate integrated door ring is improved.

This invention belongs to the field of daily chemical products and discloses the application of *Amomum villosum* essential oil in the preparation of hair cosmetics with oil-controlling and / or anti-hair loss effects. Verification has shown that *Amomum villosum* essential oil has excellent effects on scalp oil control and hair loss prevention. Furthermore, *Amomum villosum* essential oil is mainly composed of volatile oils, and its components, including bornyl acetate and camphor, have good transdermal absorption properties, which can indirectly regulate the "spleen-regulating dampness-resolving and hair loss-preventing" function. This invention also provides a hair product containing *Amomum villosum* essential oil.

This invention provides a mildly exothermic light-cured gingival barrier resin composition and its preparation method. The composition comprises the following components in weight percentage: 40-65% acrylate prepolymer, 30-55% acrylate monomer, 0.1-0.3% camphorquinone, 0.1-0.2% ethyl p-dimethylaminobenzoate and coated ethyl p-dimethylaminobenzoate, 0.2-1.0% coated triethanolamine, 0.1-1.0% ammonium salt, 3-6% thickener, 0.01-0.1% stabilizer, 0.1-0.5% pigment, and 0.5-3% flavoring agent. This invention significantly reduces the curing exothermic temperature by adjusting the photoinitiator system of the light-cured gingival barrier resin product, using a CQ+EDMAB+TEOA photoinitiator system, and pre-treating the photoinitiator with coating and adding an appropriate amount of ammonium salt, thus avoiding the risk of burning the patient's gums without affecting the product's barrier effect.

The application relates to the technical field of 2-methyl isochroman alcohol detection, in particular to a 2-methyl isochroman alcohol hapten, a preparation method and application thereof. The 2-methyl isochroman alcohol hapten has a structural formula as shown in formula (I). The application uses D-camphor as raw material, and a novel 2-methyl isochroman alcohol hapten compound shown in formula (I) is prepared, specific antibodies prepared by the method are used for detecting 2-methyl isochroman alcohol, have excellent specific recognition, and the IC 50 can reach 0.46 ng / mL.

This invention discloses a camphor-based benzothiazole ratiometric fluorescent probe for detecting hydrazine, its preparation method, and its application. The fluorescent probe is 3-(benzothiazole-2-yl)-4′-methoxy-5-((4,7,7-trimethyl-3-oxo-3-cyclohexylcyclopentenyl)methyl)-1,1′-biphenyl-4-acetate. Starting with camphor, it first undergoes an aldol condensation reaction with 5-bromosalicylic acid; subsequently, a hexamethylenetetramine formylation reaction yields the corresponding benzaldehyde derivative; then, a coupling reaction with 4-morpholinophenylboronic acid forms a biphenyl structure; next, a coupling cyclization reaction with 2-aminothiophenol constructs a benzothiazole structure; finally, an acetyl chloride substitution reaction yields the target fluorescent probe. This compound exhibits a specific reaction with hydrazine, causing a redshift in fluorescence emission wavelength from 506 nm to 613 nm, thereby achieving sensitive detection of hydrazine in solution. This probe has advantages such as good selectivity, low detection limit, and strong anti-interference ability, and has good application prospects in the fields of environmental monitoring and chemical analysis.