HPLC法同时测定云南红大戟中三种蒽醌类化合物的含量

摘 要 目的：建立HPLC法同时测定红大戟药材中芦西定、5 羟基巴戟醌与红大戟素的含量。方法: 采用 Waters Xbridge C18色谱柱（250 mm×4.6 mm,5 μm）,以0.05%磷酸为流动相A,以乙腈为流动相B,梯度洗脱;流速为1.0 ml·min^-1,检测波长为280 nm,柱温为30℃。 结果: 芦西定、5 羟基巴戟醌、红大戟素的线性范围分别为0.147～29.400 μg·mL^-1(r=0.999 6)、0.126～25.200 μg·mL^-1 (r=0.999 9)、0.135～27.000μg·mL^-1 (r=0.999 5),平均加样回收率分别为98.50%（RSD=1.20%）、98.72%（RSD=0.73%）、101.10%（RSD=1.12%）(n=6)。结论:本文建立的方法经方法学验证可用于评价红大戟药材质量。     

HPLC法同时测定肝炎康复丸中6种成分的含量

摘 要 目的：建立HPLC波长切换联合梯度洗脱法同时测定肝炎康复丸中6种主要成分[(R,S) 告依春、丹酚酸B、丹参酮ⅡA、木犀草苷、对羟基苯乙酮、滨蒿内酯]的含量。方法: 色谱柱为Agilent TC C18柱（250 mm×4.6 mm,5 μm）,流动相为乙腈 0.1%磷酸溶液梯度洗脱,流速为0.9 ml·min^-1,检测波长分别为245 nm[检测(R,S) 告依春]、270 nm（检测丹酚酸B和丹参酮ⅡA）、348 nm（检测木犀草苷）、278 nm（检测对羟基苯乙酮和滨蒿内酯）,柱温为25℃,进样量为10 μl。 结果:(R,S) 告依春、丹酚酸B、丹参酮ⅡA、木犀草苷、对羟基苯乙酮、滨蒿内酯的线性范围分别为1.99～49.75 μg·mL^-1 (r=0.999 9)、18.66～466.50 μg·mL^-1 (r=0.999 4)、2.25～56.25 μg·mL^-1 (r=0.999 8) 、2.62～65.50 μg·mL^-1 (r=0.999 8)、2.48～62.00 μg·mL^-1(r=0.999 2) 和2.55～63.75 μg·mL^-1 (r=0.999 6),平均加样回收率分别为98.42%、99.56%、97.96%、96.84%、98.10%和97.82%,RSD分别为0.83%、1.04%、1.53%、0.78%、1.44%和1.34%(n=6) 。 结论:本方法简便、准确、重复性好,可为肝炎康复丸多指标定量质量评价提供依据。     

HPLC波长切换法测定氨咖黄敏胶囊4个成分的含量

摘 要 目的： 建立HPLC波长切换法同时测定氨咖黄敏胶囊中4个成分的含量。方法: 采用Agilent ZORBAX SB C₁₈色谱柱（250 mm×4.6 mm,5 μm）,以乙腈（A）-甲醇（B）-磷酸二氢铵溶液（取0.1 mol·L^-1磷酸二氢铵溶液1 000 ml ,加磷酸1 ml,混匀）（C）为流动相,梯度洗脱,流速1.0 ml·min^-1,柱温 35℃,变换波长时间为（0～9 min ：225 nm;9～38 min ：450 nm）。结果: 采用HPLC波长切换法测定氨咖黄敏胶囊4个成分的含量,线性范围分别为：对乙酰氨基酚24.680～394.900 μg·ml^-1（r=0.999 9）,马来酸氯苯那敏0.201～3.214 μg·ml^-1（r=0.999 9）,咖啡因1.129～18.070 μg·ml^-1（r=0.999 9）,胆红素0.010～0.165 μg·ml^-1（r=0.999 8）;平均回收率分别为：99.25% (RSD=0.46%), 99.29% (RSD=0.32%),99.49% (RSD=0.48%)及99.75% (RSD=0.55%)（n=6）。结论:该法简单,灵敏,准确,重复性好,可用于氨咖黄敏胶囊的含量测定。     

HPLC-CAD法同时测定硫酸卡那霉素注射液中卡那霉素和卡那霉素B的含量

摘 要 目的：建立HPLC CAD法测定硫酸卡那霉素注射液中卡那霉素和卡那霉素B含量的方法。方法: 采用Boston Green ODS C18（250 mm×4.6 mm,5 μm）色谱柱,以0.2 mol·L-1三氟醋酸溶液 甲醇（95 ∶〖KG-*2〗5）作为流动相,流速:1.0 ml·min^-1,柱温:30℃,喷雾温度:55℃,喷雾压力:56.4 psi。结果:卡那霉素在0.385~38.500 μg·ml^-1之间呈现良好的线性关系（r=0.999 9）,检出限为0.075μg·ml^-1,定量限为0.154 μg·ml^-1,回收率为100.97%（n=9）。卡那霉素B在0.374~37.400 μg·ml^-1之间呈现良好的线性关系（r=1.000 0）,检出限为0.075 μg·ml^-1,定量限为0.150 μg·ml^-1,回收率为100.44%（n=9）。结论:建立的HPLC CAD测定卡那霉素和卡那霉素B含量的方法检出限低,操作简单准确,可以有效控制硫酸卡那霉素注射液的质量。     

SPE-HPLC法测定三层共挤输液袋中抗氧剂在氧氟沙星氯化钠注射液中的迁移量

摘 要 目的：建立固相萃取 高效液相色谱（SPE HPLC）测定三层共挤输液用袋中抗氧剂在氧氟沙星氯化钠注射液中的迁移量的方法。方法: 采用固相萃取 高效液相色谱法(SPE HPLC),先将抗氧剂富集在HLB(hydrophilic l;pophilicbalance)固相萃取小柱上,洗脱后,在Waters Symmetry shield RP C₁₈（250 mm×4.6 mm,5 μm）色谱柱上分离,以甲醇和水为流动相,梯度洗脱,流速为1.0 ml·min^-1,检测波长为276 nm,柱温为35℃,进样量为20 μl。结果: 抗氧剂1010、1076、168的在4.95～98.98 μg·mL^-1（r=1.000 0）、4.92～98.41 μg·mL^-1（r=0.999 9）及5.00～99.96 μg·mL^-1（r=1.000 0）浓度范围内具有良好线性关系。检出限分别为0.003、0.005和0.006 μg·mL^-1。平均回收率分别为94.7%、91.2%和92.0%,RSD分别为4.3%、3.7%和4.9%（n=9）。结论:本方法简便、准确、重复性好,可用于该药与包装的相容性评价。     

《中国药典》中桑叶含量测定项下方法的改进

摘 要 目的： 对《中国药典》中桑叶含量测定项下方法进行改进。方法: 采用HPLC法,Agilent Zorbax SB-C18色谱柱(250 mm×4.6 mm,5 μm);流动相为乙腈-0.2%磷酸水溶液（梯度洗脱）,流速为1.0 ml·min^-1;检测波长为354 nm;柱温为30 ℃。结果: 《中国药典》2010年版桑叶含量测定项下测得的芦丁含量实为芦丁和异槲皮苷的含量之和,优化后方法可分离该两种化合物,且芦丁和异槲皮苷分别在2.76～27.60 μg·mL^-1（r=0.999 9）和4.74～47.39 μg·mL^-1（r=0.999 8）范围内与峰面积呈良好的线性关系;平均加样回收率分别为100.31% (RSD=0.83%)和100.32%（RSD=1.04%）（n=6）。结论: 优化后方法简便、稳定、重复性好,可用于桑叶的质量控制。     

顶空气相色谱法测定富马酸卢帕他定原料中残留溶剂的含量

摘 要 目的：采用顶空气相色谱法测定富马酸卢帕他定原料中的环己烷、乙酸乙酯、甲醇、二氯甲烷、三氯甲烷5种有机溶剂的残留量。方法: 色谱柱：DB WAXETRR毛细管色谱柱（30 m×0.32 mm,0.25 μm）;载气：氮气;FID检测器;进样口温度：200℃;采用程序升温：初始温度为35℃,保持10 min,以20℃·min^-1升温至220℃,保持5 min。结果: 环己烷、乙酸乙酯、甲醇、二氯甲烷、三氯甲烷分别在77.590 1~698.310 9 μg·mL^-1（r=0.999 7）,102.166 6~919.499 4 μg·mL^-1（r=0.999 8）,62.744 7~564.703 2 μg·mL^-1（r=0.999 9）,12.011 2~108.101 1 μg·mL^-1（r=0.999 6）,1.262 8~11.365 6 μg·mL^-1（r=0.999 6）范围内线性关系良好。5种残留溶剂的平均回收率分别为103.9%,103.5%,104.9%,107.1%,103.4%,RSD值分别为2.3%、2.6%、3.1%、2.8%、4.5%（n=9）。富马酸卢帕他定原料中均未检出此5种残留溶剂。结论:本方法稳定、简便、准确,灵敏度高,适用于富马酸卢帕他定原料中残留溶剂的测定。     

顶空气相色谱法测定盐酸厄洛替尼中有机溶剂残留量

摘 要 目的：建立顶空毛细管气相色谱法测定盐酸厄洛替尼中有机溶剂残留量的方法。方法: 采用顶空毛细管气相色谱法,色谱柱为DB 624毛细管柱（30 m×0.53 mm,3.0 μm）,载气为氮气,流速为2.0 ml·min^-1,进样口温度为190 ℃,FID检测器温度为230 ℃,采用程序升温：初始温度为35 ℃,保持8 min,以28 ℃·min^-1升温至170 ℃,保持8 min,再以32 ℃·min^-1升温至200 ℃,保持7 min。顶空瓶平衡温度为100 ℃,时间30 min。结果: 乙醇、异丙醇、二氯甲烷、正丁醇分别在0.68~409.14 μg·mL^-1（r=0.999 8）、0.67~404.88 μg·mL^-1（r=0.999 8）、1.71~51.31 μg·mL^-1（r=0.999 7）、0.72~431.12 μg·mL^-1（r=0.999 8）浓度范围内线性关系良好,平均回收率分别为99.0%（RSD=0.41%,n=9）、100.2%（RSD=0.52%,n=9）、97.1%（RSD=1.75%,n=9）、102.5%（RSD=1.08%,n=9）。结论:该方法简便、准确性好,适用于盐酸厄洛替尼中4种有机溶剂残留量的测定。     

HPLC法测定吲哚美辛呋喃唑酮栓中两组分的含量

摘 要 目的：建立同时测定吲哚美辛呋喃唑酮栓中两组分含量的HPLC法。方法: 采用XTerra RP18色谱柱(250 mm×4.6 mm,5 μm),以甲醇为流动相A,0.01 mol·K^-1磷酸二氢钾溶液 三乙胺(100〖KG*9〗∶〖KG-*2〗0.02)为流动相B,梯度洗脱,流速1.0 ml·min^-1,柱温30 ℃,检测波长263 nm,进样量10 μl。结果: 吲哚美辛呋喃唑酮栓中呋喃唑酮和吲哚美辛的分离度符合要求;线性范围分别为5.12~81.87 μg·ml^-1 (r=1.000 0)和3.78~60.45 μg·ml^-1 (r=1.000 0);平均回收率分别为99.6% (RSD=1.5%,n=6)和100.3% (RSD=1.6%,n=6);定量限分别为0.02 μg·ml^-1和0.05 μg·ml^-1。结论:该法经方法学验证,适用于吲哚美辛呋喃唑酮栓的质量评价。     

HPLC波长切换法同时测定茵栀祛黄胶囊中7种成分的含量

摘 要 目的：建立HPLC波长切换法同时测定茵栀祛黄胶囊中栀子苷、甘草苷、芦荟大黄素、大黄酸、大黄素、大黄酚和大黄素甲醚的含量。方法: 采用Waters Sunfire C18（250 mm×4.6 mm,5 μm）色谱柱;流动相：甲醇（A） 0.05%磷酸溶液（B）（梯度洗脱）,流速为1.0 ml·min^-1 ,柱温为25℃,检测波长(0~15 min：在238 nm波长下检测栀子苷和甘草苷;15~50 min：在254 nm波长下检测芦荟大黄素、大黄酸、大黄素、大黄酚和大黄素甲醚),进样量为10 μl。结果: 栀子苷、甘草苷、芦荟大黄素、大黄酸、大黄素、大黄酚和大黄素甲醚的线性范围分别为0.13～3.18 μg·ml^-1（r=0.999 8）、0.19～4.84 μg·ml^-1（r=0.999 7）、0.28～7.02 μg·ml^-1（r=0.999 9）、0.13～3.16 μg·ml^-1（r=0.999 9）、0.61～15.27 μg·ml^-1（r=0.999 9）、0.32～8.03 μg·ml^-1（r=0.999 9）、0.39～9.81 μg·ml^-1（r=0.999 9）;平均加样回收率分别为98.84%（RSD=0.74%）、99.34%（RSD=0.86%）、99.54%（RSD=0.30%）、99.56%（RSD=0.80%）、99.85%（RSD=0.41%）、99.57%（RSD=0.70%）、99.64%（RSD=0.30%）（n=9）。结论: 本文建立的HPLC含量测定方法,具有操作简便、专属性高、重复性良好、结果准确可靠的特点,可用于茵栀祛黄胶囊的质量控制。     

Evaluation of genotoxic effects of sodium propionate, calcium propionate and potassium propionate on the root meristem cells of Allium cepa

The effects of different treatments with food preservatives, sodium propionate (SP), calcium propionate (CP) and potassium propionate (PP), on the cytology and DNA content of Allium cepa were investigated. Five concentrations of these additives – 1000, 1500, 2000, 2500, and 3000 ppm – were applied for 24, 48, and 72 h. All concentrations of these chemicals showed an inhibitory effect on cell division in root-tips of A. cepa and caused a decrease in mitotic index values. Additionally, all treatments changed the frequency of mitotic phases when compared with the control groups. These compounds increased chromosome abnormalities in test material. Among these abnormalities were C-mitosis, anaphase bridges, micronuclei, binucleated cells, stickiness, laggards, and chromosome breaks. The nuclear DNA contents decreased when compared with control groups.     

HPLC法测定丙酸氟替卡松乳膏中丙酸氟替卡松的含量

目的 建立丙酸氟替卡松乳膏中丙酸氟替卡松含量测定的方法.方法 采用高效液相色谱法,色谱柱为C18柱(250 mm×4.6 mm,5 μm),流动相为0.02 M磷酸溶液(三乙胺调pH=4.5)-甲醇(24:76),流速1.0 ml·min-1,检测波长为240 nm,柱温35℃.结果 丙酸氟替卡松进样浓度在10～35 mg·L-1范围内与峰面积呈良好线性关系(r=0.999 9),平均回收率为98.83%,RSD为0.47%(n=9).结论 测定方法专属性强、精密、准确、灵敏、简便可行,可作为丙酸氟替卡松乳膏的质量控制方法.     

吸入丙酸氟替卡松气雾剂与丙酸倍氯米松气雾剂治疗儿童哮喘疗效观察

目的:观察丙酸氟替卡松气雾剂(辅舒酮)与丙酸倍氯米松气雾剂(必可酮)吸入治疗儿童哮喘的总体疗效及差异.方法:我院门诊和住院的哮喘儿童120例随机分为两组,分别使用两种药物并观察其疗效和肺功能.结果:两组患儿肺功能均有明显改善(P<0.001),两组的临床疗效差异有统计学意义(P<0.01),丙酸氟替卡松气雾剂组临床症状改善程度明显优于丙酸倍氯米松气雾剂组.结论:丙酸氟替卡松气雾刑是一种新型、高效、安全的新一代的吸入性糖皮质激素,具有抗炎强、副作用小等优点,可以代替丙酸倍氯米松气雾剂长期吸入治疗儿童哮喘.     

高效液相色谱法测定鱼丙涂剂中丙酸睾酮的含量

目的建立以高效液相色谱法测定鱼丙涂剂中丙酸睾酮含量的方法。方法色谱柱为Kromasil C18,流动相为甲醇-水溶液(80∶20),检测波长为254nm,流速为1.0ml/min。结果丙酸睾酮检测浓度在100~400mg/ml范围内线性关系良好(r=0.9997);平均回收率为98.5%(RSD=0.55%)。结论本法简便、准确、重现性好,可用于鱼丙涂剂的质量控制。     

Systemic bioavailability of fluticasone propionate administered as nasal drops and aqueous nasal spray formulations

AIMS: To measure and compare the systemic bioavailability of fluticasone propionate aqueous nasal spray and a new nasal drop formulation, using a sensitive analytical method and high dose regimen. METHODS: Volunteers received four 800 microg doses of fluticasone propionate as a nasal spray or drops over 2 days, separated by an 8 h dose interval. On day 2, blood samples were collected for assay of fluticasone propionate plasma concentrations. RESULTS: The mean systemic exposure, for both formulations was 8.5 pg x ml(-1) x h (drops) and 67.5 pg x ml(-1) x h (spray). Mean absolute bioavailabilities were estimated to be 0.06% (drops) and 0.51% (spray), by reference to historical intravenous data. CONCLUSIONS: Both formulations exhibited low systemic bioavailability, even at 12 times the normal daily dose. The bioavailability from the nasal drops was approximately eight times lower than from the nasal spray.     

Pharmacokinetic and pharmacodynamic evaluation of fluticasone propionate after inhaled administration

Objective: To evaluate the pharmacokinetic and systemic pharmacodynamic properties of inhaled fluticasone propionate (FP). Methods: Single doses of 0.25, 0.5, 1.0 and 3.0 mg FP were administered to groups of six healthy subjects. Serum concentration profiles of FP were monitored over 24 h by means of high-performance liquid chromatography/mass spectrometry (HPLC/MS–MS). Systemic pharmacodynamic effects were evaluated by measuring endogenous serum cortisol and circulating white blood cells, and analyzed with previously developed integrated pharmacokinetic/pharmacodynamic (PK/PD) models. Results: FP showed a dose-independent terminal half-life with a mean (SD) of 6.0 (0.7) h. Maximum serum concentrations occurred 1.0 (0.5) h after administration, ranging from 90 pg · ml⁻¹ for the 0.25 mg dose to 400 pg · ml⁻¹ for the 3.0 mg dose. This, together with an estimated mean absorption time of nearly 5 h and a known oral bioavailability of less than 1%, indicates prolonged residence at and slow absorption from the lungs. In the investigated dose range, the cumulative systemic effect was dose-dependent for both markers of pharmacodynamic activity. For doses of 0.25, 0.50, 1.0 and 3.0 mg FP, the PK/PD-based cumulative systemic-effect parameters were 159, 186, 257 and 372% · h for lymphocyte suppression, 107, 186, 202 and 348% · h for granulocyte induction and 23.6%, 33.8%, 51.0% and 73.6% for cortisol reduction, respectively. The time courses of lymphocytes, granulocytes and endogenous cortisol could be sufficiently characterized with the applied PK/PD models. The measured in vivo EC₅₀ values, 30 pg · ml⁻¹ and 7.3 pg · ml⁻¹ for white blood cells and cortisol, respectively, were in good agreement with predictions based on the in vitro relative receptor affinity of FP. Conclusion: After inhalation, FP follows linear pharmacokinetics and exhibits dose-dependent systemic pharmacodynamic effects that can be described by PK/PD modeling. Received: 27 January 1997 / Accepted in revised form: 5 August 1997     

Intermittent application of clobet asol-17-propionate in psoriasis

Summary

A double-blind study was carried out in 12 hospitalized patients with symmetrical eruptions of psoriasis to evaluate the efJfectiveness of treatment with 0.05% clobetasol propionate ointment. applied once daily, to one side for 2 weeks compared with 1 week of active treatment and 1 week of vehicle alone to the other side. The results of clinical assessments of scaling, redness, and induration be[ore and utter each week of treatment showed only a very slight difference in favour of 2-weeks' continuous treatment when analyzed using a one-tailed Student's t-test (p = 0.047) but not when two-tailed testing was used (p = 0.094). Although it would appear that there was no clear preference for continuous therapy. other studies involving larger numbers of patients are needed to determine whether intermittent therapy with a potent corticosteroid such as clobetasol propionate is equally as effective in psoriasis.     

丙酸氟替卡松鼻喷雾剂对儿童哮喘控制及过敏性鼻炎症状改善的作用

目的 比探讨丙酸氟替卡松鼻喷雾剂在改善儿童过敏性鼻炎症状以及控制哮喘反复发作方面的作用.方法 将100例过敏性鼻炎合并哮喘综合征患儿按照随机数字表法分为对照组和观察组.对照组应用氯雷他定及经口腔吸人糖皮质激素,观察组在此基础上使用丙酸氟替卡松鼻喷雾剂治疗,观察两组疗效.结果 观察组总有效率（94％）明显优于对照组（76％）（x2=6.35,P＜0.05）.10 ～ 12周以后,观察组与对照组鼻炎症状评分及哮喘症状评分差异均有统计学意义（t=2.47、2.64、3.41;2.30、3.17、2.47,均P＜0.05）.不良反应方面两组鼻腔干燥、鼻出血发生率差异均有统计学意义（x2 =7.11、7.53,均P＜0.05）.结论 丙酸氟替卡松鼻喷雾剂在改善儿童过敏性鼻炎和哮喘症状复发方面有很好疗效,值得临床大力推广.     

丙酸氟替卡松每日不同吸入次数治疗哮喘儿童疗效对比

目的比较丙酸氟替卡松在哮喘控制良好的轻到中度哮喘儿童中qd与bid吸入治疗的疗效.方法选择77例哮喘控制良好的患儿,随机分为两组,分别给予100μg丙酸氟替卡松qd和bid吸入8周后,评价晨间PEF等指标,通过方差分析比较两组差异.结果两组1～8、1～6、7～8周晨间PEF均在95%的可信区间,证明bid与qd吸入丙酸氟替卡松的疗效在本组实验设计中无差异.无论是qd还是bid吸入,对轻到中度哮喘患儿症状的控制均让人满意.结论对于控制良好的轻到中度哮喘患儿,丙酸氟替卡松100 μg晚上一次性吸入与50 μg早晚各吸入一次的效果均确切,且没有差别.     

HPLC法测定复方酮康唑乳膏的含量

目的:建立RP-HPLC法测定复方酮康唑乳膏(皮康王)中的酮康唑、丙酸氯倍他索的含量。方法:用THERO Hylicerm ODS C_(18)(250mm×4.6mm,5μm),流动相为甲醇-0.02mol·L~(-1)磷酸二氢钾溶液(72:28)(用氨水调pH到7.2),流速1. 0ml·min~(-1),检测波长240nm。结果:酮康唑和丙酸氯倍他索的线性范围分别为2.5～25.0μg(r=0.999 9)和0.07～0.66μg(r =0.999 8),平均回收率分别为100.0%(RSD 0.1%)和99.6%(RSD 0.4%)(n=6)。结论:方法专属和准确,可作为复方酮康唑乳膏的质量控制。