diff --git a/titer.html b/titer.html
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index 0000000..2dcca40
--- /dev/null
+++ b/titer.html
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+<!DOCTYPE html>
+<html lang="zh_CN">
+
+<head>
+    <meta charset="UTF-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
+    <title>标水(Titer)</title>
+    <link rel="stylesheet" href="./github.css">
+    <link rel="stylesheet" href="./theme.css">
+    <script src="./decimal.js"></script>
+    <script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
+    <script>
+        var debug = false;
+        var tip = "<br>" +
+            "测试版本，请再次人工核对数据是否准确！" +
+            "<br>" +
+            "公式：" +
+            "<br>" +
+            "F' = AVERAGE(F1, F2, F3)" + "<br>" +
+            "RDx = [ Fx - F' ] / F' * 100";
+        var decimal = Decimal.set(
+            {
+                rounding: Decimal.ROUND_HALF_EVEN,
+                precision: 12
+            }
+        );
+
+
+        $(document).ready(function () {
+            var input_m0 = document.getElementById("m0");
+            var input_m1 = document.getElementById("m1");
+            var input_m2 = document.getElementById("m2");
+
+            $(".msgbox").append(tip)
+
+            $("#ok").click(function () {
+                var m0 = input_m0.value;
+                var m1 = input_m1.value;
+                var m2 = input_m2.value;
+
+                f = average(m0, m1, m2);
+                console.log("f=" + f);
+
+                var msg = "<br>" +
+                    "F' = " + f + "<br>" +
+                    "RD1 = " + titer(f, m0) + "<br>" +
+                    "RD2 = " + titer(f, m1) + "<br>" +
+                    "RD3 = " + titer(f, m2) + "<br>"
+                    ;
+
+                message(msg);
+            });
+
+            $("#clear").click(function () {
+                input_m0.value = "";
+                input_m1.value = "";
+                input_m2.value = "";
+
+                message(tip);
+            });
+
+            $("#new_page").click(function () {
+                window.open(window.location.href, "_blank");
+            });
+
+            if (debug) {
+                document.getElementById("m0").value = 2;
+                document.getElementById("m1").value = 3;
+                document.getElementById("m2").value = 4;
+            }
+        });
+
+        function message(msg) {
+            $(".msgbox").empty();
+            $(".msgbox").append(msg);
+        }
+
+        /**
+         * 计算标水
+         * @param f F值，为三次mg/mL值的平均值
+         * @param m 该次mg/mL的值
+         */
+        function titer(f, m) {
+            temp = decimal.sub(m, f)
+            return temp.div(f).mul(100);
+        }
+
+        function average(a, b, c) {
+            var sum = Decimal(a).add(Decimal(b)).add(Decimal(c));
+            return decimal.div(sum, 3);
+        }
+
+        function checkNull(m0, m1, m2) {
+            return m0 == '' || m1 == '' || m2 == '';
+        }
+
+    </script>
+</head>
+
+<body>
+
+    <div class="team">
+        <input type="number" id="m0" class="m0" placeholder="F1" inputmode="decimal"><br>
+        <input type="number" id="m1" class="m1" placeholder="F2" inputmode="decimal"><br>
+        <input type="number" id="m2" class="m2" placeholder="F3" inputmode="decimal"><br>
+        <br>
+    </div>
+
+    <div class="buttons">
+        <button id="new_page">新开标签页</button>
+        <button id="clear">清除内容</button>
+        <button id="ok">计算</button>
+    </div>
+
+    <div class="msgbox"></div>
+
+</body>
+
+</html>
