HPLC法同时测定女金胶囊中黄芩苷和丹皮酚的含量

目的:高效液相色谱法测定女金胶囊中黄芩苷和丹皮酚的含量.方法:色谱柱:Symmetry C18柱(150 mm×3.9 mm,5μm);流动相:甲醇-0.4％磷酸(48∶52),流速:1ml ·min-1;紫外检测波长:276 nm;柱温:30℃;进样量:10μl.结果:在4.96～24.80 μg和2.60～13.00 μg范围内成线性关系,平均回收率分别为98.3％和98.4％(n=6).结论:该方法简便,准确,可作为女金胶囊中黄芩苷和丹皮酚含量的测定方法.     

HPLC法测定女金糖浆中橙皮苷、黄芩苷和丹皮酚

目的建立女金糖浆中橙皮苷、黄芩苷和丹皮酚的HPLC分析方法。方法采用资生堂Spolar-C18色谱柱(250mm×4.6mm,5μm);流动相为[甲醇-乙腈-0.1%磷酸(12:13:75)]-乙腈,进行梯度洗脱;柱温40℃;体积流量1.0mL/min;检测波长283nm;进样量10μL。结果橙皮苷、黄芩苷和丹皮酚分别在0.07395～2.21849、0.50820～10.16400、0.15871～2.38060μg线性关系良好,回收率分别为97.0%、98.9%、99.0%,RSD值分别为0.33%、0.41%、0.14%(n=6)。结论该方法方便、快速、灵敏度高,可以为女金糖浆的质量控制提供依据。     

高效液相色谱法测定风湿定片中丹皮酚的含量

目的:对风湿定片中的丹皮酚进行含量测定.方法:采用HPLC法,以Diamonsil-C18为色谱柱,以甲醇-水(50:50)为流动相,流速为1.0 mL/min,检测波长为274姗.结果:丹皮酚在6～70 μg/mL范围内线性关系良好,相关系数r=0.9999;平均回收率为99.60%,RSD=1.23%(n=6).结论:本方法结果准确,重现性好,可用于风湿定片中丹皮酚的含量测定.     

HPLC同时测定津溢胶囊中丹皮酚与格列本脲的含量

目的 建立高效液相色谱法同时测定津溢胶囊中格列本脲和丹皮酚的含量.方法 采用C18柱,以甲醇-磷酸二氢铵溶液(62∶38)为流动相,检测波长274 nm.结果 格列本脲进样量在0.34～1.69 μg内线性关系良好,:r=0.999 8;丹皮酚进样量在0.17～0.83 μg内线性关系良好,r=0.999 8.平均回收率:格列本脲98.6%(RSD=0.5%,n=6);丹皮酚101.1%(RSD=1.4%,n=6).结论 本方法测定津溢胶囊中格列本脲和丹皮酚的含量准确,方便快捷,且分离效果好.     

HPLC法同时测定妇乐颗粒中4种成分的含量

目的:建立同时测定妇乐颗粒中没食子酸、绿原酸、芍药苷、丹皮酚含量的方法。方法:采用高效液相色谱法。色谱柱为月旭XB-C_(18),流动相为甲醇-0.05%磷酸溶液(梯度洗脱),流速为1.0 mL/min,检测波长为270 nm(没食子酸、丹皮酚)、325 nm(绿原酸)、230 nm(芍药苷),柱温为30℃,进样量为10μL。结果:没食子酸、绿原酸、芍药苷和丹皮酚检测进样量线性范围分别为0.076 2~1.524μg(r=0.999 7)、0.037 6~0.751μg(r=0.999 9)、0.030 3~0.606μg(r=0.999 7)、0.020 6~0.412μg(r=0.999 8);定量限分别为0.353、0.276、0.421、0.540μg/mL,检测限分别为0.121、0.104、0.148、0.186μg/mL;精密度、稳定性、重复性试验的RSD≤2.04%;加样回收率分别为95.24%~100.47%(RSD=1.59%,n=9)、99.49%~103.70%(RSD=2.27%,n=9)、96.27%~101.09%(RSD=1.94%,n=9)、95.05%~98.90%(RSD=1.22%,n=9)。结论:该方法操作简单、结果准确、重复性良好,可用于妇乐颗粒中没食子酸、绿原酸、芍药苷、丹皮酚含量的同时测定。     

HPLC测定杞菊地黄胶囊中的丹皮酚

目的 建立测定杞菊地黄胶囊中丹皮酚的方法.方法 采用HPLC法,Shim-pack VP-C18色谱柱(4.6 mm×150 mm,5 μm),流动相为甲醇-水(60:40),流速1.0 ml·min-1,检测波长274 nm,柱温35℃,进样量10 μl.结果 线性范围0.03～2.30 μg(r＝0.9998),平均回收率100.38%,RSD＝1.89%(n＝9).结论 所建方法分离度好、快速、简便,适用于杞菊地黄胶囊中丹皮酚的含量测定,可作为产品的质量控制方法.     

HPLC 梯度洗脱法同时测定小儿葫芦散中天麻素、 巴利森苷 E、巴利森苷 A 和橙皮苷含量

目的：建立 HPLC 梯度洗脱法同时测定小儿葫芦散中天麻素、巴利森苷 E、巴利森苷 A 和橙皮苷的含量。方法： 采用 Agilent Extend C18（200 mm × 4.6 mm,5 μm）色谱柱,柱温 25 ℃ ;流动相为甲醇 -0.1% 甲酸溶液,梯度洗脱,流速 0.8 mL/min ;检测波长分别为 220 nm（检测天麻素、巴利森苷 E 和巴利森苷 A）和 284 nm（检测橙皮苷）。结果：天麻素、 巴利森苷 E、巴利森苷 A 和橙皮苷分别在 1.52～30.40 μg/mL、1.78～35.60 μg/mL、4.16～83.20 μg/mL、9.34～186.80 μg/mL 范围内线性关系良好（r ≥ 0.999 3）,平均加样回收率分别为 98.42%、96.93%、99.49% 和 97.66%,RSD 分别为 0.96%、0.67%、 1.09% 和 0.77%。结论：所建立的方法操作便捷、结果准确,可用于小儿葫芦散的质量控制。     

高效液相色谱法测定不同产地不同年份牡丹皮中丹皮酚的含量

目的 建立高效液相色谱法,测定不同产地、不同年份牡丹皮中丹皮酚含量.方法 色谱柱为Diamonsil C18柱(4.6 mm×200.0 mm,5.0 μm),流动相为甲醇-醋酸-水(54∶2∶44),流速1.0 ml/min;检测波长274 nm.结果 丹皮酚在5.1～102.0 μg/ml范围内线性关系良好,r=0.9996,平均回收率为99.4%,精密度(RSD)=0.94%.不同产地及同一产地不同年份牡丹皮中丹皮酚含量差异显著(P＜0.01).结论 该方法准确、稳定、简单,可以作为牡丹皮药材的质量控制方法.     

RP-HPLC测定脑络通胶囊中甲基橙皮苷的含量

目的 建立用RP-HPLC测定脑络通胶囊中甲基橙皮苷含量.方法 采用ODS-C18(200 mm×4.6 mm,5 μm)色谱柱;甲醇-醋酸-水(35:4:61)为流动相;检测波长为284 nm.结果 甲基橙皮苷在4.92～246.0 μg/ml的浓度范围内线性良好,r=0.9999,平均回收率为99.78%,RSD为0.3%(n=6).结论 该方法简便,结果准确、重复性好,可用于脑络通胶囊的质量控制和评价.     

HPLC测定丹皮酚软膏（丹皮酚霜）中丹皮酚的含量

目的:采用 HPLC 法测定丹皮酚软膏(霜)中丹皮酚的含量。方法:色谱柱为 Hypersil C_(18)柱(150 mm×4.6 mm,5 μm);流动相:甲醇-水(50:50);流速1.0 mL·min~(-1);检测波长:274 nm。结果:丹皮酚进样量在0.05～0.54 μg范围内呈良好线性关系(r=0.9998),平均回收率(n=6)为98.7%,RSD 为2.0%。结论:本法准确,重现性好。     

Degraded and undegraded carrageenans and experimental gastric and duodenal ulceration

The prevention of histamine-induced gastric and duodenal ulceration in the guinea-pig has been examined using a series of undegraded and degraded carrageenans. Undegraded carrageenans were active at lower doses than degraded carrageenans. The high viscosity of the undegraded carrageenans in solution prevented their use in larger doses. Degradation of carrageenan without serious loss of sulphate, gives a product which allows the dose to be increased to an extent that its effect more than offsets the slight loss in activity caused by the degradation. No single feature of carrageenan structure can be related to anti-ulcer activity although degradation, and hence reduction of molecular size, generally reduces activity. Sulphate contents over 30% have little apparent effect on activity; κ-carrageenans were not consistently different in anti-ulcer activity from Λ-carrageenans. This contrasts with the antipeptic activity of carrageenans where κ-carrageenans are less active than their Λ-counter-parts. As with antipeptic activity, the degree of anti-ulcer activity is probably determined by a combination of structural features which includes molecular size and polyanionic properties.     

Affective and Anxiety Disorders and Alcohol and Drug Dependence:

Depression and anxiety frequently coexist in patients with substance use disorders. This clinically-oriented article examiens the relationship between these conditions and emphasizes data showing that substances of abuse can cause signs and symptoms of both depression and anxiety. These substance-related syndromes appear to have a different course and prognosis than uncomplicated, independent anxiety and major depressive disorders, and clinicians should consider the role of alcohol and other drugs in all patients presenting with these complaints. The authors will also outline an approach for diagnosing and managing patients with the combination of a substance use and depressive or anxiety disorder.     

Alcohol and Substance Use and Abuse in Women and Children

No abstract available for this article.     

Synthesis and anti-nociceptive and anti-inflammatory effects of gaultherin and its analogs

The synthesis of gaultherin (1) and its analogs was carried out to provide 11 glycosides under phase-transfer catalytic conditions. The activities of all synthesized compounds were evaluated by nitric oxide production inhibitory assay in vitro. Methyl 2-O-(4-O-β-d-galactopyranosyl)-β-d-glucopyranosylbenzoate (5f) showed significantly anti-nociceptive and anti-inflammatory effects by the evaluation in vivo. Structure–activity relationships within these compounds were discussed.