formaldehyde造句
151, According to the AIM and NBO analysises, hydrogen bond between thymine and formaldehyde plays an important role in stabilizing the complex. Conformer (A) has the most stability in this work.
152, Overseas research progress of new process for synthesis glycerol from formaldehyde is introduced. Close relationship of the technology yielding with formose technique is reviewed.
153, The results showed the exposure surface of planets decreased by coating treatment, so the concentration of formaldehyde and benzene series in air reduced and were lower than the standard value.
154, A new curing agent was synthesized by the reaction of phenylamine - formaldehyde and dicyanodiamide.
155, The catalysis of resinic solid acid catalysts in catalytic distillation is studied for synthesis of methylal from methanol and formaldehyde.
156, The adhesive industry has focused on the research to produce UF resins with low free formaldehyde content (FFC) and with high agglutinative strength.
157, It mainly deals in the development and selling of "Methanol transformed to formaldehyde" and Polyformaldehyde products.
158, Tests with diphenylamine, formaldehyde, and staining with acridine orange as well as the curves of thermal denaturation showed that this strain of virus had a single stranded DNA.
159, The effects of the organic impurities such as formaldehyde, methanol and lower alcohols on the hydrogenation of2 - butynediol are studied.
160, The application of acid catalysts in the coupling reaction of formaldehyde and methyl formate to form methyl glycolate and methyl methoxyacetate was investigated.
161, Moreover, the hatchability of the cysts collected naturally can be increased by soaking in 3% H_2O_2, 3% formaldehyde, or decapsulation treatment.
162, A new ketone resin is prepared from residuum of cyclohexanone rectification and formaldehyde with compound acid as catalyst, it is modified with pyromellitic dianhydride.
163, Synthesis organic cation polyelectrolyte dicyandiamide formaldehyde flocculant used in sludge treatment were studied in this paper.
164, Formula with Rochelle salt as the complexing agent and formaldehyde as the reducer for electroless copper deposition resulted in deposition with better washing property.
165, In this paper, lower polyformaldehyde and solid formaldehyde is distinguished by combining the productive method with the quality indexes of polymeric degree clearly.
166, AIM For further understanding the physiological and pathological significance of plasma semicarbazide-sensitive amine oxidase(SSAO) activity and endogenous formaldehyde.
167, Besides, the re-lease of formaldehyde from panels was very low.
168, The bedding that contains formaldehyde is met in use process gradually commentate go on a journey leaves formaldehyde.
169, Formaldehyde in the air could be removed by spider plant in a long-term period, and the removal rate was higher in daytime than that in nighttime.
170, Tea-leaf is purely natural material, harmless and doesn't produce secondary pollution. Tea-leaf can eliminate formaldehyde that is because it contains same activation composition, s...
171, A fast chromatographic determination of formaldehyde and acetaldehyde from the feed - in of pentaerythritol production was reported.
172, The proposed method is simple and rapid and has been applied satisfactorily in the analysis of sodium sulfoxylate formaldehyde in some food samples.
173, While conventional adhesive will cause free formaldehyde because of using another self-crosslinking reactive monomer methylol acrylamide.
174, Besides reproduction toxicity and carcinogenicity, there were negative effects by formaldehyde to the respiratory, allergization, immunity, nerves and endocrine system of human body.
175, Objective : To optimize the preparing condition of formaldehyde dip method.
176, Amino-sulfonic acid series water-reducing agent was prepared with the materials ofp-aminobenzene sulfonic acid, phenol and formaldehyde by changing the technical parameters.
177, Carbon membrane supporter ( CMS ) is prepared from phenol - formaldehyde resin ( PFR ) cured by hexamethylenetetramine ( HMTA ).
178, This article demonstrates the pollution of formaldehyde in the micro-environment of modern integral ambry which leads to harm to human health.
179, The inactivation of enzyme by formaldehyde is a reversible reaction with remaining enzyme activity.
180, In this Nper, N-p-carboxylphenylmaleimide(P-CPMI)was synthesized and the curing reaction of o-cresol formaldehyde epoxy resin with it as cure agent was investigated.
123456789